Finding the Fourth Proportional to 118,666.85, 163,760.31 and 64,952.15

Step by Step Solution

1. Step 1: Write the proportion equation
   118,666.85 : 163,760.31 = 64,952.15 : x
2. Step 2: Convert to fraction form
   118,666.85/163,760.31 = 64,952.15/x
3. Step 3: Cross multiply
   118,666.85x = 163,760.31 × 64,952.15
4. Step 4: Simplify right side
   118,666.85x = 10,636,584,219.17
5. Step 5: Solve for x
   x = 10,636,584,219.17/118,666.85
6. Step 6: Final answer
   x = 89,634.00