Finding the Fourth Proportional to 9,762.21, 13,471.20 and 5,513.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,762.21 : 13,471.20 = 5,513.94 : x
2. Step 2: Convert to fraction form
   9,762.21/13,471.20 = 5,513.94/x
3. Step 3: Cross multiply
   9,762.21x = 13,471.20 × 5,513.94
4. Step 4: Simplify right side
   9,762.21x = 74,279,388.53
5. Step 5: Solve for x
   x = 74,279,388.53/9,762.21
6. Step 6: Final answer
   x = 7,608.87