Finding the Fourth Proportional to 5,320.17, 7,981.89 and 2,724.93

Step by Step Solution

1. Step 1: Write the proportion equation
   5,320.17 : 7,981.89 = 2,724.93 : x
2. Step 2: Convert to fraction form
   5,320.17/7,981.89 = 2,724.93/x
3. Step 3: Cross multiply
   5,320.17x = 7,981.89 × 2,724.93
4. Step 4: Simplify right side
   5,320.17x = 21,750,091.52
5. Step 5: Solve for x
   x = 21,750,091.52/5,320.17
6. Step 6: Final answer
   x = 4,088.23