Finding the Fourth Proportional to 42,555.78, 58,718.52 and 23,689.26

Step by Step Solution

1. Step 1: Write the proportion equation
   42,555.78 : 58,718.52 = 23,689.26 : x
2. Step 2: Convert to fraction form
   42,555.78/58,718.52 = 23,689.26/x
3. Step 3: Cross multiply
   42,555.78x = 58,718.52 × 23,689.26
4. Step 4: Simplify right side
   42,555.78x = 1,390,998,287.10
5. Step 5: Solve for x
   x = 1,390,998,287.10/42,555.78
6. Step 6: Final answer
   x = 32,686.47