Finding the Fourth Proportional to 9,755.55, 13,462.74 and 5,724.79

Step by Step Solution

1. Step 1: Write the proportion equation
   9,755.55 : 13,462.74 = 5,724.79 : x
2. Step 2: Convert to fraction form
   9,755.55/13,462.74 = 5,724.79/x
3. Step 3: Cross multiply
   9,755.55x = 13,462.74 × 5,724.79
4. Step 4: Simplify right side
   9,755.55x = 77,071,325.67
5. Step 5: Solve for x
   x = 77,071,325.67/9,755.55
6. Step 6: Final answer
   x = 7,900.25