Finding the Fourth Proportional to 9,972.77, 13,762.56 and 5,724.17

Step by Step Solution

1. Step 1: Write the proportion equation
   9,972.77 : 13,762.56 = 5,724.17 : x
2. Step 2: Convert to fraction form
   9,972.77/13,762.56 = 5,724.17/x
3. Step 3: Cross multiply
   9,972.77x = 13,762.56 × 5,724.17
4. Step 4: Simplify right side
   9,972.77x = 78,779,233.08
5. Step 5: Solve for x
   x = 78,779,233.08/9,972.77
6. Step 6: Final answer
   x = 7,899.43