Finding the Fourth Proportional to 105,061.12, 144,978.46 and 59,732.71

Step by Step Solution

1. Step 1: Write the proportion equation
   105,061.12 : 144,978.46 = 59,732.71 : x
2. Step 2: Convert to fraction form
   105,061.12/144,978.46 = 59,732.71/x
3. Step 3: Cross multiply
   105,061.12x = 144,978.46 × 59,732.71
4. Step 4: Simplify right side
   105,061.12x = 8,659,956,307.43
5. Step 5: Solve for x
   x = 8,659,956,307.43/105,061.12
6. Step 6: Final answer
   x = 82,427.79