Finding the Fourth Proportional to 42,172.27, 58,200.20 and 23,311.15

Step by Step Solution

1. Step 1: Write the proportion equation
   42,172.27 : 58,200.20 = 23,311.15 : x
2. Step 2: Convert to fraction form
   42,172.27/58,200.20 = 23,311.15/x
3. Step 3: Cross multiply
   42,172.27x = 58,200.20 × 23,311.15
4. Step 4: Simplify right side
   42,172.27x = 1,356,713,592.23
5. Step 5: Solve for x
   x = 1,356,713,592.23/42,172.27
6. Step 6: Final answer
   x = 32,170.75