Finding the Fourth Proportional to 42,317.28, 58,367.52 and 27,960.48

Step by Step Solution

1. Step 1: Write the proportion equation
   42,317.28 : 58,367.52 = 27,960.48 : x
2. Step 2: Convert to fraction form
   42,317.28/58,367.52 = 27,960.48/x
3. Step 3: Cross multiply
   42,317.28x = 58,367.52 × 27,960.48
4. Step 4: Simplify right side
   42,317.28x = 1,631,983,875.61
5. Step 5: Solve for x
   x = 1,631,983,875.61/42,317.28
6. Step 6: Final answer
   x = 38,565.42