Finding the Fourth Proportional to 1,560,729,047,025.30, 2,153,631,404,429.70 and 866,298,873,731.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,560,729,047,025.30 : 2,153,631,404,429.70 = 866,298,873,731.10 : x
2. Step 2: Convert to fraction form
   1,560,729,047,025.30/2,153,631,404,429.70 = 866,298,873,731.10/x
3. Step 3: Cross multiply
   1,560,729,047,025.30x = 2,153,631,404,429.70 × 866,298,873,731.10
4. Step 4: Simplify right side
   1,560,729,047,025.30x = 1,865,688,460,089,376,171,360,256
5. Step 5: Solve for x
   x = 1,865,688,460,089,376,171,360,256/1,560,729,047,025.30
6. Step 6: Final answer
   x = 1,195,395,487,541.75