Finding the Fourth Proportional to 123,560.17, 185,128.63 and 67,439.63

Step by Step Solution

1. Step 1: Write the proportion equation
   123,560.17 : 185,128.63 = 67,439.63 : x
2. Step 2: Convert to fraction form
   123,560.17/185,128.63 = 67,439.63/x
3. Step 3: Cross multiply
   123,560.17x = 185,128.63 × 67,439.63
4. Step 4: Simplify right side
   123,560.17x = 12,485,006,603.83
5. Step 5: Solve for x
   x = 12,485,006,603.83/123,560.17
6. Step 6: Final answer
   x = 101,043.94