Finding the Fourth Proportional to 9,903.05, 13,666.23 and 5,426.71

Step by Step Solution

1. Step 1: Write the proportion equation
   9,903.05 : 13,666.23 = 5,426.71 : x
2. Step 2: Convert to fraction form
   9,903.05/13,666.23 = 5,426.71/x
3. Step 3: Cross multiply
   9,903.05x = 13,666.23 × 5,426.71
4. Step 4: Simplify right side
   9,903.05x = 74,162,667.00
5. Step 5: Solve for x
   x = 74,162,667.00/9,903.05
6. Step 6: Final answer
   x = 7,488.87