Finding the Fourth Proportional to 105,471.56, 145,550.62 and 59,540.86

Step by Step Solution

1. Step 1: Write the proportion equation
   105,471.56 : 145,550.62 = 59,540.86 : x
2. Step 2: Convert to fraction form
   105,471.56/145,550.62 = 59,540.86/x
3. Step 3: Cross multiply
   105,471.56x = 145,550.62 × 59,540.86
4. Step 4: Simplify right side
   105,471.56x = 8,666,209,088.33
5. Step 5: Solve for x
   x = 8,666,209,088.33/105,471.56
6. Step 6: Final answer
   x = 82,166.31