Finding the Fourth Proportional to 42,280.20, 58,347.72 and 23,160.96

Step by Step Solution

1. Step 1: Write the proportion equation
   42,280.20 : 58,347.72 = 23,160.96 : x
2. Step 2: Convert to fraction form
   42,280.20/58,347.72 = 23,160.96/x
3. Step 3: Cross multiply
   42,280.20x = 58,347.72 × 23,160.96
4. Step 4: Simplify right side
   42,280.20x = 1,351,389,209.01
5. Step 5: Solve for x
   x = 1,351,389,209.01/42,280.20
6. Step 6: Final answer
   x = 31,962.70