Finding the Fourth Proportional to 105,461.16, 145,535.31 and 60,146.52

Step by Step Solution

1. Step 1: Write the proportion equation
   105,461.16 : 145,535.31 = 60,146.52 : x
2. Step 2: Convert to fraction form
   105,461.16/145,535.31 = 60,146.52/x
3. Step 3: Cross multiply
   105,461.16x = 145,535.31 × 60,146.52
4. Step 4: Simplify right side
   105,461.16x = 8,753,442,433.62
5. Step 5: Solve for x
   x = 8,753,442,433.62/105,461.16
6. Step 6: Final answer
   x = 83,001.58