Finding the Fourth Proportional to 28,060.72, 42,081.94 and 9,335.73

Step by Step Solution

1. Step 1: Write the proportion equation
   28,060.72 : 42,081.94 = 9,335.73 : x
2. Step 2: Convert to fraction form
   28,060.72/42,081.94 = 9,335.73/x
3. Step 3: Cross multiply
   28,060.72x = 42,081.94 × 9,335.73
4. Step 4: Simplify right side
   28,060.72x = 392,865,629.72
5. Step 5: Solve for x
   x = 392,865,629.72/28,060.72
6. Step 6: Final answer
   x = 14,000.55