Finding the Fourth Proportional to 10,396.52, 14,347.12 and 5,680.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,396.52 : 14,347.12 = 5,680.72 : x
2. Step 2: Convert to fraction form
   10,396.52/14,347.12 = 5,680.72/x
3. Step 3: Cross multiply
   10,396.52x = 14,347.12 × 5,680.72
4. Step 4: Simplify right side
   10,396.52x = 81,501,971.53
5. Step 5: Solve for x
   x = 81,501,971.53/10,396.52
6. Step 6: Final answer
   x = 7,839.35