Finding the Fourth Proportional to 123,929.61, 171,024.20 and 67,340.98

Step by Step Solution

1. Step 1: Write the proportion equation
   123,929.61 : 171,024.20 = 67,340.98 : x
2. Step 2: Convert to fraction form
   123,929.61/171,024.20 = 67,340.98/x
3. Step 3: Cross multiply
   123,929.61x = 171,024.20 × 67,340.98
4. Step 4: Simplify right side
   123,929.61x = 11,516,937,231.72
5. Step 5: Solve for x
   x = 11,516,937,231.72/123,929.61
6. Step 6: Final answer
   x = 92,931.28