Finding the Fourth Proportional to 7,218.83, 10,832.04 and 5,123.99

Step by Step Solution

1. Step 1: Write the proportion equation
   7,218.83 : 10,832.04 = 5,123.99 : x
2. Step 2: Convert to fraction form
   7,218.83/10,832.04 = 5,123.99/x
3. Step 3: Cross multiply
   7,218.83x = 10,832.04 × 5,123.99
4. Step 4: Simplify right side
   7,218.83x = 55,503,264.64
5. Step 5: Solve for x
   x = 55,503,264.64/7,218.83
6. Step 6: Final answer
   x = 7,688.68