Finding the Fourth Proportional to 42,380.32, 58,485.36 and 23,519.20

Step by Step Solution

1. Step 1: Write the proportion equation
   42,380.32 : 58,485.36 = 23,519.20 : x
2. Step 2: Convert to fraction form
   42,380.32/58,485.36 = 23,519.20/x
3. Step 3: Cross multiply
   42,380.32x = 58,485.36 × 23,519.20
4. Step 4: Simplify right side
   42,380.32x = 1,375,528,878.91
5. Step 5: Solve for x
   x = 1,375,528,878.91/42,380.32
6. Step 6: Final answer
   x = 32,456.78