Finding the Fourth Proportional to 118,592.59, 163,661.64 and 64,877.61

Step by Step Solution

1. Step 1: Write the proportion equation
   118,592.59 : 163,661.64 = 64,877.61 : x
2. Step 2: Convert to fraction form
   118,592.59/163,661.64 = 64,877.61/x
3. Step 3: Cross multiply
   118,592.59x = 163,661.64 × 64,877.61
4. Step 4: Simplify right side
   118,592.59x = 10,617,975,233.57
5. Step 5: Solve for x
   x = 10,617,975,233.57/118,592.59
6. Step 6: Final answer
   x = 89,533.21