Finding the Fourth Proportional to 117,838.40, 162,617.52 and 64,123.04

Step by Step Solution

1. Step 1: Write the proportion equation
   117,838.40 : 162,617.52 = 64,123.04 : x
2. Step 2: Convert to fraction form
   117,838.40/162,617.52 = 64,123.04/x
3. Step 3: Cross multiply
   117,838.40x = 162,617.52 × 64,123.04
4. Step 4: Simplify right side
   117,838.40x = 10,427,530,386.67
5. Step 5: Solve for x
   x = 10,427,530,386.67/117,838.40
6. Step 6: Final answer
   x = 88,490.09