Finding the Fourth Proportional to 105,557.42, 145,648.77 and 60,234.27

Step by Step Solution

1. Step 1: Write the proportion equation
   105,557.42 : 145,648.77 = 60,234.27 : x
2. Step 2: Convert to fraction form
   105,557.42/145,648.77 = 60,234.27/x
3. Step 3: Cross multiply
   105,557.42x = 145,648.77 × 60,234.27
4. Step 4: Simplify right side
   105,557.42x = 8,773,047,337.35
5. Step 5: Solve for x
   x = 8,773,047,337.35/105,557.42
6. Step 6: Final answer
   x = 83,111.62