Finding the Fourth Proportional to 42,472.05, 63,716.13 and 14,010.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,472.05 : 63,716.13 = 14,010.72 : x
2. Step 2: Convert to fraction form
   42,472.05/63,716.13 = 14,010.72/x
3. Step 3: Cross multiply
   42,472.05x = 63,716.13 × 14,010.72
4. Step 4: Simplify right side
   42,472.05x = 892,708,856.91
5. Step 5: Solve for x
   x = 892,708,856.91/42,472.05
6. Step 6: Final answer
   x = 21,018.74