Finding the Fourth Proportional to 9,009.37, 12,432.81 and 5,030.55

Step by Step Solution

1. Step 1: Write the proportion equation
   9,009.37 : 12,432.81 = 5,030.55 : x
2. Step 2: Convert to fraction form
   9,009.37/12,432.81 = 5,030.55/x
3. Step 3: Cross multiply
   9,009.37x = 12,432.81 × 5,030.55
4. Step 4: Simplify right side
   9,009.37x = 62,543,872.35
5. Step 5: Solve for x
   x = 62,543,872.35/9,009.37
6. Step 6: Final answer
   x = 6,942.09