Finding the Fourth Proportional to 72,388.64, 108,514.88 and 39,058.76

Step by Step Solution

1. Step 1: Write the proportion equation
   72,388.64 : 108,514.88 = 39,058.76 : x
2. Step 2: Convert to fraction form
   72,388.64/108,514.88 = 39,058.76/x
3. Step 3: Cross multiply
   72,388.64x = 108,514.88 × 39,058.76
4. Step 4: Simplify right side
   72,388.64x = 4,238,456,654.35
5. Step 5: Solve for x
   x = 4,238,456,654.35/72,388.64
6. Step 6: Final answer
   x = 58,551.41