Finding the Fourth Proportional to 7,291.52, 10,061.78 and 4,307.20

Step by Step Solution

1. Step 1: Write the proportion equation
   7,291.52 : 10,061.78 = 4,307.20 : x
2. Step 2: Convert to fraction form
   7,291.52/10,061.78 = 4,307.20/x
3. Step 3: Cross multiply
   7,291.52x = 10,061.78 × 4,307.20
4. Step 4: Simplify right side
   7,291.52x = 43,338,098.82
5. Step 5: Solve for x
   x = 43,338,098.82/7,291.52
6. Step 6: Final answer
   x = 5,943.63