Finding the Fourth Proportional to 5,235.32, 7,224.72 and 2,877.56

Step by Step Solution

1. Step 1: Write the proportion equation
   5,235.32 : 7,224.72 = 2,877.56 : x
2. Step 2: Convert to fraction form
   5,235.32/7,224.72 = 2,877.56/x
3. Step 3: Cross multiply
   5,235.32x = 7,224.72 × 2,877.56
4. Step 4: Simplify right side
   5,235.32x = 20,789,565.28
5. Step 5: Solve for x
   x = 20,789,565.28/5,235.32
6. Step 6: Final answer
   x = 3,971.02