Finding the Fourth Proportional to 39,904.72, 59,837.12 and 13,600.24

Step by Step Solution

1. Step 1: Write the proportion equation
   39,904.72 : 59,837.12 = 13,600.24 : x
2. Step 2: Convert to fraction form
   39,904.72/59,837.12 = 13,600.24/x
3. Step 3: Cross multiply
   39,904.72x = 59,837.12 × 13,600.24
4. Step 4: Simplify right side
   39,904.72x = 813,799,192.91
5. Step 5: Solve for x
   x = 813,799,192.91/39,904.72
6. Step 6: Final answer
   x = 20,393.56