Finding the Fourth Proportional to 38,659.32, 57,993.57 and 13,694.31

Step by Step Solution

1. Step 1: Write the proportion equation
   38,659.32 : 57,993.57 = 13,694.31 : x
2. Step 2: Convert to fraction form
   38,659.32/57,993.57 = 13,694.31/x
3. Step 3: Cross multiply
   38,659.32x = 57,993.57 × 13,694.31
4. Step 4: Simplify right side
   38,659.32x = 794,181,925.59
5. Step 5: Solve for x
   x = 794,181,925.59/38,659.32
6. Step 6: Final answer
   x = 20,543.09