Finding the Fourth Proportional to 42,472.48, 63,726.27 and 21,401.26

Step by Step Solution

1. Step 1: Write the proportion equation
   42,472.48 : 63,726.27 = 21,401.26 : x
2. Step 2: Convert to fraction form
   42,472.48/63,726.27 = 21,401.26/x
3. Step 3: Cross multiply
   42,472.48x = 63,726.27 × 21,401.26
4. Step 4: Simplify right side
   42,472.48x = 1,363,822,473.10
5. Step 5: Solve for x
   x = 1,363,822,473.10/42,472.48
6. Step 6: Final answer
   x = 32,110.73