Finding the Fourth Proportional to 39,308.78, 58,962.54 and 14,348.72

Step by Step Solution

1. Step 1: Write the proportion equation
   39,308.78 : 58,962.54 = 14,348.72 : x
2. Step 2: Convert to fraction form
   39,308.78/58,962.54 = 14,348.72/x
3. Step 3: Cross multiply
   39,308.78x = 58,962.54 × 14,348.72
4. Step 4: Simplify right side
   39,308.78x = 846,036,976.95
5. Step 5: Solve for x
   x = 846,036,976.95/39,308.78
6. Step 6: Final answer
   x = 21,522.85