Finding the Fourth Proportional to 42,124.49, 63,142.98 and 17,153.81

Step by Step Solution

1. Step 1: Write the proportion equation
   42,124.49 : 63,142.98 = 17,153.81 : x
2. Step 2: Convert to fraction form
   42,124.49/63,142.98 = 17,153.81/x
3. Step 3: Cross multiply
   42,124.49x = 63,142.98 × 17,153.81
4. Step 4: Simplify right side
   42,124.49x = 1,083,142,366.04
5. Step 5: Solve for x
   x = 1,083,142,366.04/42,124.49
6. Step 6: Final answer
   x = 25,712.89