Finding the Fourth Proportional to 102,724.89, 141,774.42 and 59,116.54

Step by Step Solution

1. Step 1: Write the proportion equation
   102,724.89 : 141,774.42 = 59,116.54 : x
2. Step 2: Convert to fraction form
   102,724.89/141,774.42 = 59,116.54/x
3. Step 3: Cross multiply
   102,724.89x = 141,774.42 × 59,116.54
4. Step 4: Simplify right side
   102,724.89x = 8,381,213,170.91
5. Step 5: Solve for x
   x = 8,381,213,170.91/102,724.89
6. Step 6: Final answer
   x = 81,588.92