Finding the Fourth Proportional to 42,275.28, 58,340.28 and 23,412.78

Step by Step Solution

1. Step 1: Write the proportion equation
   42,275.28 : 58,340.28 = 23,412.78 : x
2. Step 2: Convert to fraction form
   42,275.28/58,340.28 = 23,412.78/x
3. Step 3: Cross multiply
   42,275.28x = 58,340.28 × 23,412.78
4. Step 4: Simplify right side
   42,275.28x = 1,365,908,140.78
5. Step 5: Solve for x
   x = 1,365,908,140.78/42,275.28
6. Step 6: Final answer
   x = 32,309.85