Finding the Fourth Proportional to 42,390.78, 58,500.72 and 23,272.08

Step by Step Solution

1. Step 1: Write the proportion equation
   42,390.78 : 58,500.72 = 23,272.08 : x
2. Step 2: Convert to fraction form
   42,390.78/58,500.72 = 23,272.08/x
3. Step 3: Cross multiply
   42,390.78x = 58,500.72 × 23,272.08
4. Step 4: Simplify right side
   42,390.78x = 1,361,433,435.90
5. Step 5: Solve for x
   x = 1,361,433,435.90/42,390.78
6. Step 6: Final answer
   x = 32,116.26