Finding the Fourth Proportional to 117,132.56, 161,643 and 63,417.59

Step by Step Solution

1. Step 1: Write the proportion equation
   117,132.56 : 161,643 = 63,417.59 : x
2. Step 2: Convert to fraction form
   117,132.56/161,643 = 63,417.59/x
3. Step 3: Cross multiply
   117,132.56x = 161,643 × 63,417.59
4. Step 4: Simplify right side
   117,132.56x = 10,251,009,500.37
5. Step 5: Solve for x
   x = 10,251,009,500.37/117,132.56
6. Step 6: Final answer
   x = 87,516.31