Finding the Fourth Proportional to 5,354.24, 7,389.24 and 3,116.30

Step by Step Solution

1. Step 1: Write the proportion equation
   5,354.24 : 7,389.24 = 3,116.30 : x
2. Step 2: Convert to fraction form
   5,354.24/7,389.24 = 3,116.30/x
3. Step 3: Cross multiply
   5,354.24x = 7,389.24 × 3,116.30
4. Step 4: Simplify right side
   5,354.24x = 23,027,088.61
5. Step 5: Solve for x
   x = 23,027,088.61/5,354.24
6. Step 6: Final answer
   x = 4,300.72