Finding the Fourth Proportional to 42,360.78, 63,522.71 and 14,275.61

Step by Step Solution

1. Step 1: Write the proportion equation
   42,360.78 : 63,522.71 = 14,275.61 : x
2. Step 2: Convert to fraction form
   42,360.78/63,522.71 = 14,275.61/x
3. Step 3: Cross multiply
   42,360.78x = 63,522.71 × 14,275.61
4. Step 4: Simplify right side
   42,360.78x = 906,825,045.11
5. Step 5: Solve for x
   x = 906,825,045.11/42,360.78
6. Step 6: Final answer
   x = 21,407.18