Finding the Fourth Proportional to 72,251.56, 108,408.48 and 30,139.93

Step by Step Solution

1. Step 1: Write the proportion equation
   72,251.56 : 108,408.48 = 30,139.93 : x
2. Step 2: Convert to fraction form
   72,251.56/108,408.48 = 30,139.93/x
3. Step 3: Cross multiply
   72,251.56x = 108,408.48 × 30,139.93
4. Step 4: Simplify right side
   72,251.56x = 3,267,423,727.59
5. Step 5: Solve for x
   x = 3,267,423,727.59/72,251.56
6. Step 6: Final answer
   x = 45,222.88