Finding the Fourth Proportional to 7,191.29, 10,788.56 and 2,810.00

Step by Step Solution

1. Step 1: Write the proportion equation
   7,191.29 : 10,788.56 = 2,810.00 : x
2. Step 2: Convert to fraction form
   7,191.29/10,788.56 = 2,810.00/x
3. Step 3: Cross multiply
   7,191.29x = 10,788.56 × 2,810.00
4. Step 4: Simplify right side
   7,191.29x = 30,315,785.61
5. Step 5: Solve for x
   x = 30,315,785.61/7,191.29
6. Step 6: Final answer
   x = 4,215.63