Finding the Fourth Proportional to 118,058.23, 162,915.61 and 64,342.10

Step by Step Solution

1. Step 1: Write the proportion equation
   118,058.23 : 162,915.61 = 64,342.10 : x
2. Step 2: Convert to fraction form
   118,058.23/162,915.61 = 64,342.10/x
3. Step 3: Cross multiply
   118,058.23x = 162,915.61 × 64,342.10
4. Step 4: Simplify right side
   118,058.23x = 10,482,331,494.75
5. Step 5: Solve for x
   x = 10,482,331,494.75/118,058.23
6. Step 6: Final answer
   x = 88,789.50