Finding the Fourth Proportional to 5,288.86, 7,301.61 and 3,612.70

Step by Step Solution

1. Step 1: Write the proportion equation
   5,288.86 : 7,301.61 = 3,612.70 : x
2. Step 2: Convert to fraction form
   5,288.86/7,301.61 = 3,612.70/x
3. Step 3: Cross multiply
   5,288.86x = 7,301.61 × 3,612.70
4. Step 4: Simplify right side
   5,288.86x = 26,378,526.45
5. Step 5: Solve for x
   x = 26,378,526.45/5,288.86
6. Step 6: Final answer
   x = 4,987.56