Finding the Fourth Proportional to 117,839.90, 162,619.59 and 64,124.55

Step by Step Solution

1. Step 1: Write the proportion equation
   117,839.90 : 162,619.59 = 64,124.55 : x
2. Step 2: Convert to fraction form
   117,839.90/162,619.59 = 64,124.55/x
3. Step 3: Cross multiply
   117,839.90x = 162,619.59 × 64,124.55
4. Step 4: Simplify right side
   117,839.90x = 10,427,908,029.93
5. Step 5: Solve for x
   x = 10,427,908,029.93/117,839.90
6. Step 6: Final answer
   x = 88,492.17