Finding the Fourth Proportional to 42,124.64, 63,225.84 and 21,362.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,124.64 : 63,225.84 = 21,362.72 : x
2. Step 2: Convert to fraction form
   42,124.64/63,225.84 = 21,362.72/x
3. Step 3: Cross multiply
   42,124.64x = 63,225.84 × 21,362.72
4. Step 4: Simplify right side
   42,124.64x = 1,350,675,916.68
5. Step 5: Solve for x
   x = 1,350,675,916.68/42,124.64
6. Step 6: Final answer
   x = 32,063.80