Finding the Fourth Proportional to 113,709,555.48, 156,926,361.72 and 64,131,840.12

Step by Step Solution

1. Step 1: Write the proportion equation
   113,709,555.48 : 156,926,361.72 = 64,131,840.12 : x
2. Step 2: Convert to fraction form
   113,709,555.48/156,926,361.72 = 64,131,840.12/x
3. Step 3: Cross multiply
   113,709,555.48x = 156,926,361.72 × 64,131,840.12
4. Step 4: Simplify right side
   113,709,555.48x = 10,063,976,340,440,328
5. Step 5: Solve for x
   x = 10,063,976,340,440,328/113,709,555.48
6. Step 6: Final answer
   x = 88,505,986.13