Finding the Fourth Proportional to 109,443.80, 151,032.12 and 59,142.80

Step by Step Solution

1. Step 1: Write the proportion equation
   109,443.80 : 151,032.12 = 59,142.80 : x
2. Step 2: Convert to fraction form
   109,443.80/151,032.12 = 59,142.80/x
3. Step 3: Cross multiply
   109,443.80x = 151,032.12 × 59,142.80
4. Step 4: Simplify right side
   109,443.80x = 8,932,462,466.74
5. Step 5: Solve for x
   x = 8,932,462,466.74/109,443.80
6. Step 6: Final answer
   x = 81,616.89