Finding the Fourth Proportional to 42,510.24, 63,734.13 and 21,439.89

Step by Step Solution

1. Step 1: Write the proportion equation
   42,510.24 : 63,734.13 = 21,439.89 : x
2. Step 2: Convert to fraction form
   42,510.24/63,734.13 = 21,439.89/x
3. Step 3: Cross multiply
   42,510.24x = 63,734.13 × 21,439.89
4. Step 4: Simplify right side
   42,510.24x = 1,366,452,736.45
5. Step 5: Solve for x
   x = 1,366,452,736.45/42,510.24
6. Step 6: Final answer
   x = 32,144.08