Finding the Fourth Proportional to 9,123.33, 12,590.18 and 5,144.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,123.33 : 12,590.18 = 5,144.42 : x
2. Step 2: Convert to fraction form
   9,123.33/12,590.18 = 5,144.42/x
3. Step 3: Cross multiply
   9,123.33x = 12,590.18 × 5,144.42
4. Step 4: Simplify right side
   9,123.33x = 64,769,173.80
5. Step 5: Solve for x
   x = 64,769,173.80/9,123.33
6. Step 6: Final answer
   x = 7,099.29