Finding the Fourth Proportional to 10,437.02, 14,402.90 and 5,721.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,437.02 : 14,402.90 = 5,721.20 : x
2. Step 2: Convert to fraction form
   10,437.02/14,402.90 = 5,721.20/x
3. Step 3: Cross multiply
   10,437.02x = 14,402.90 × 5,721.20
4. Step 4: Simplify right side
   10,437.02x = 82,401,770.86
5. Step 5: Solve for x
   x = 82,401,770.86/10,437.02
6. Step 6: Final answer
   x = 7,895.15