Finding the Fourth Proportional to 117,756.57, 162,502.52 and 64,040.43

Step by Step Solution

1. Step 1: Write the proportion equation
   117,756.57 : 162,502.52 = 64,040.43 : x
2. Step 2: Convert to fraction form
   117,756.57/162,502.52 = 64,040.43/x
3. Step 3: Cross multiply
   117,756.57x = 162,502.52 × 64,040.43
4. Step 4: Simplify right side
   117,756.57x = 10,406,730,124.17
5. Step 5: Solve for x
   x = 10,406,730,124.17/117,756.57
6. Step 6: Final answer
   x = 88,374.95