Finding the Fourth Proportional to 39,403.59, 59,116.38 and 21,885.72

Step by Step Solution

1. Step 1: Write the proportion equation
   39,403.59 : 59,116.38 = 21,885.72 : x
2. Step 2: Convert to fraction form
   39,403.59/59,116.38 = 21,885.72/x
3. Step 3: Cross multiply
   39,403.59x = 59,116.38 × 21,885.72
4. Step 4: Simplify right side
   39,403.59x = 1,293,804,540.09
5. Step 5: Solve for x
   x = 1,293,804,540.09/39,403.59
6. Step 6: Final answer
   x = 32,834.69