Finding the Fourth Proportional to 9,009.38, 12,432.89 and 5,030.45

Step by Step Solution

1. Step 1: Write the proportion equation
   9,009.38 : 12,432.89 = 5,030.45 : x
2. Step 2: Convert to fraction form
   9,009.38/12,432.89 = 5,030.45/x
3. Step 3: Cross multiply
   9,009.38x = 12,432.89 × 5,030.45
4. Step 4: Simplify right side
   9,009.38x = 62,543,098.47
5. Step 5: Solve for x
   x = 62,543,098.47/9,009.38
6. Step 6: Final answer
   x = 6,942.00