Finding the Fourth Proportional to 102,549.78, 141,524.10 and 60,121.98

Step by Step Solution

1. Step 1: Write the proportion equation
   102,549.78 : 141,524.10 = 60,121.98 : x
2. Step 2: Convert to fraction form
   102,549.78/141,524.10 = 60,121.98/x
3. Step 3: Cross multiply
   102,549.78x = 141,524.10 × 60,121.98
4. Step 4: Simplify right side
   102,549.78x = 8,508,709,109.72
5. Step 5: Solve for x
   x = 8,508,709,109.72/102,549.78
6. Step 6: Final answer
   x = 82,971.50