Finding the Fourth Proportional to 102,617.90, 141,636.32 and 60,190.10

Step by Step Solution

1. Step 1: Write the proportion equation
   102,617.90 : 141,636.32 = 60,190.10 : x
2. Step 2: Convert to fraction form
   102,617.90/141,636.32 = 60,190.10/x
3. Step 3: Cross multiply
   102,617.90x = 141,636.32 × 60,190.10
4. Step 4: Simplify right side
   102,617.90x = 8,525,103,255.30
5. Step 5: Solve for x
   x = 8,525,103,255.30/102,617.90
6. Step 6: Final answer
   x = 83,076.19