Finding the Fourth Proportional to 5,526.72, 8,231.54 and 5,499.81

Step by Step Solution

1. Step 1: Write the proportion equation
   5,526.72 : 8,231.54 = 5,499.81 : x
2. Step 2: Convert to fraction form
   5,526.72/8,231.54 = 5,499.81/x
3. Step 3: Cross multiply
   5,526.72x = 8,231.54 × 5,499.81
4. Step 4: Simplify right side
   5,526.72x = 45,271,878.51
5. Step 5: Solve for x
   x = 45,271,878.51/5,526.72
6. Step 6: Final answer
   x = 8,191.46