Finding the Fourth Proportional to 8,123.84, 11,207.55 and 5,472.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,123.84 : 11,207.55 = 5,472.10 : x
2. Step 2: Convert to fraction form
   8,123.84/11,207.55 = 5,472.10/x
3. Step 3: Cross multiply
   8,123.84x = 11,207.55 × 5,472.10
4. Step 4: Simplify right side
   8,123.84x = 61,328,806.34
5. Step 5: Solve for x
   x = 61,328,806.34/8,123.84
6. Step 6: Final answer
   x = 7,549.24