Finding the Fourth Proportional to 129,111.12, 193,491.54 and 62,418.42

Step by Step Solution

1. Step 1: Write the proportion equation
   129,111.12 : 193,491.54 = 62,418.42 : x
2. Step 2: Convert to fraction form
   129,111.12/193,491.54 = 62,418.42/x
3. Step 3: Cross multiply
   129,111.12x = 193,491.54 × 62,418.42
4. Step 4: Simplify right side
   129,111.12x = 12,077,436,210.17
5. Step 5: Solve for x
   x = 12,077,436,210.17/129,111.12
6. Step 6: Final answer
   x = 93,542.96