Finding the Fourth Proportional to 39,876.56, 59,789.24 and 17,696.72

Step by Step Solution

1. Step 1: Write the proportion equation
   39,876.56 : 59,789.24 = 17,696.72 : x
2. Step 2: Convert to fraction form
   39,876.56/59,789.24 = 17,696.72/x
3. Step 3: Cross multiply
   39,876.56x = 59,789.24 × 17,696.72
4. Step 4: Simplify right side
   39,876.56x = 1,058,073,439.29
5. Step 5: Solve for x
   x = 1,058,073,439.29/39,876.56
6. Step 6: Final answer
   x = 26,533.72