Finding the Fourth Proportional to 5,210.61, 7,200.06 and 3,715.94

Step by Step Solution

1. Step 1: Write the proportion equation
   5,210.61 : 7,200.06 = 3,715.94 : x
2. Step 2: Convert to fraction form
   5,210.61/7,200.06 = 3,715.94/x
3. Step 3: Cross multiply
   5,210.61x = 7,200.06 × 3,715.94
4. Step 4: Simplify right side
   5,210.61x = 26,754,943.82
5. Step 5: Solve for x
   x = 26,754,943.82/5,210.61
6. Step 6: Final answer
   x = 5,134.70