Finding the Fourth Proportional to 115,462,406.02, 159,300,629.85 and 78,729,204.10

Step by Step Solution

1. Step 1: Write the proportion equation
   115,462,406.02 : 159,300,629.85 = 78,729,204.10 : x
2. Step 2: Convert to fraction form
   115,462,406.02/159,300,629.85 = 78,729,204.10/x
3. Step 3: Cross multiply
   115,462,406.02x = 159,300,629.85 × 78,729,204.10
4. Step 4: Simplify right side
   115,462,406.02x = 12,541,611,800,719,200
5. Step 5: Solve for x
   x = 12,541,611,800,719,200/115,462,406.02
6. Step 6: Final answer
   x = 108,620,738.41