Finding the Fourth Proportional to 144,049.76, 216,086.18 and 38,867.21

Step by Step Solution

1. Step 1: Write the proportion equation
   144,049.76 : 216,086.18 = 38,867.21 : x
2. Step 2: Convert to fraction form
   144,049.76/216,086.18 = 38,867.21/x
3. Step 3: Cross multiply
   144,049.76x = 216,086.18 × 38,867.21
4. Step 4: Simplify right side
   144,049.76x = 8,398,665,661.39
5. Step 5: Solve for x
   x = 8,398,665,661.39/144,049.76
6. Step 6: Final answer
   x = 58,303.92