Finding the Fourth Proportional to 117,501,072.74, 162,155,130.32 and 64,576,820.06

Step by Step Solution

1. Step 1: Write the proportion equation
   117,501,072.74 : 162,155,130.32 = 64,576,820.06 : x
2. Step 2: Convert to fraction form
   117,501,072.74/162,155,130.32 = 64,576,820.06/x
3. Step 3: Cross multiply
   117,501,072.74x = 162,155,130.32 × 64,576,820.06
4. Step 4: Simplify right side
   117,501,072.74x = 10,471,462,672,480,490
5. Step 5: Solve for x
   x = 10,471,462,672,480,490/117,501,072.74
6. Step 6: Final answer
   x = 89,118,017.63