Finding the Fourth Proportional to 39,876.16, 59,819.72 and 17,689.04

Step by Step Solution

1. Step 1: Write the proportion equation
   39,876.16 : 59,819.72 = 17,689.04 : x
2. Step 2: Convert to fraction form
   39,876.16/59,819.72 = 17,689.04/x
3. Step 3: Cross multiply
   39,876.16x = 59,819.72 × 17,689.04
4. Step 4: Simplify right side
   39,876.16x = 1,058,153,419.87
5. Step 5: Solve for x
   x = 1,058,153,419.87/39,876.16
6. Step 6: Final answer
   x = 26,535.99