Finding the Fourth Proportional to 124,379.10, 171,642.51 and 67,789.98

Step by Step Solution

1. Step 1: Write the proportion equation
   124,379.10 : 171,642.51 = 67,789.98 : x
2. Step 2: Convert to fraction form
   124,379.10/171,642.51 = 67,789.98/x
3. Step 3: Cross multiply
   124,379.10x = 171,642.51 × 67,789.98
4. Step 4: Simplify right side
   124,379.10x = 11,635,642,320.05
5. Step 5: Solve for x
   x = 11,635,642,320.05/124,379.10
6. Step 6: Final answer
   x = 93,549.82