Finding the Fourth Proportional to 117,781.24, 162,539.72 and 64,068.52

Step by Step Solution

1. Step 1: Write the proportion equation
   117,781.24 : 162,539.72 = 64,068.52 : x
2. Step 2: Convert to fraction form
   117,781.24/162,539.72 = 64,068.52/x
3. Step 3: Cross multiply
   117,781.24x = 162,539.72 × 64,068.52
4. Step 4: Simplify right side
   117,781.24x = 10,413,679,301.61
5. Step 5: Solve for x
   x = 10,413,679,301.61/117,781.24
6. Step 6: Final answer
   x = 88,415.43