Finding the Fourth Proportional to 118,592.71, 163,661.82 and 64,876.48

Step by Step Solution

1. Step 1: Write the proportion equation
   118,592.71 : 163,661.82 = 64,876.48 : x
2. Step 2: Convert to fraction form
   118,592.71/163,661.82 = 64,876.48/x
3. Step 3: Cross multiply
   118,592.71x = 163,661.82 × 64,876.48
4. Step 4: Simplify right side
   118,592.71x = 10,617,802,139.55
5. Step 5: Solve for x
   x = 10,617,802,139.55/118,592.71
6. Step 6: Final answer
   x = 89,531.66