Finding the Fourth Proportional to 105,470.56, 145,549.24 and 59,539.86

Step by Step Solution

1. Step 1: Write the proportion equation
   105,470.56 : 145,549.24 = 59,539.86 : x
2. Step 2: Convert to fraction form
   105,470.56/145,549.24 = 59,539.86/x
3. Step 3: Cross multiply
   105,470.56x = 145,549.24 × 59,539.86
4. Step 4: Simplify right side
   105,470.56x = 8,665,981,372.71
5. Step 5: Solve for x
   x = 8,665,981,372.71/105,470.56
6. Step 6: Final answer
   x = 82,164.93