Finding the Fourth Proportional to 118,487.46, 163,513.02 and 64,773.12

Step by Step Solution

1. Step 1: Write the proportion equation
   118,487.46 : 163,513.02 = 64,773.12 : x
2. Step 2: Convert to fraction form
   118,487.46/163,513.02 = 64,773.12/x
3. Step 3: Cross multiply
   118,487.46x = 163,513.02 × 64,773.12
4. Step 4: Simplify right side
   118,487.46x = 10,591,248,466.02
5. Step 5: Solve for x
   x = 10,591,248,466.02/118,487.46
6. Step 6: Final answer
   x = 89,387.08