Finding the Fourth Proportional to 113,314.77, 156,387.24 and 64,921.32

Step by Step Solution

1. Step 1: Write the proportion equation
   113,314.77 : 156,387.24 = 64,921.32 : x
2. Step 2: Convert to fraction form
   113,314.77/156,387.24 = 64,921.32/x
3. Step 3: Cross multiply
   113,314.77x = 156,387.24 × 64,921.32
4. Step 4: Simplify right side
   113,314.77x = 10,152,866,051.96
5. Step 5: Solve for x
   x = 10,152,866,051.96/113,314.77
6. Step 6: Final answer
   x = 89,598.79