Finding the Fourth Proportional to 42,240, 58,291.20 and 24,576

Step by Step Solution

1. Step 1: Write the proportion equation
   42,240 : 58,291.20 = 24,576 : x
2. Step 2: Convert to fraction form
   42,240/58,291.20 = 24,576/x
3. Step 3: Cross multiply
   42,240x = 58,291.20 × 24,576
4. Step 4: Simplify right side
   42,240x = 1,432,564,531.20
5. Step 5: Solve for x
   x = 1,432,564,531.20/42,240
6. Step 6: Final answer
   x = 33,914.88