Finding the Fourth Proportional to 42,243.50, 58,295.12 and 23,123.28

Step by Step Solution

1. Step 1: Write the proportion equation
   42,243.50 : 58,295.12 = 23,123.28 : x
2. Step 2: Convert to fraction form
   42,243.50/58,295.12 = 23,123.28/x
3. Step 3: Cross multiply
   42,243.50x = 58,295.12 × 23,123.28
4. Step 4: Simplify right side
   42,243.50x = 1,347,974,382.39
5. Step 5: Solve for x
   x = 1,347,974,382.39/42,243.50
6. Step 6: Final answer
   x = 31,909.63