Finding the Fourth Proportional to 10,945.23, 16,417.72 and 7,426.52

Step by Step Solution

1. Step 1: Write the proportion equation
   10,945.23 : 16,417.72 = 7,426.52 : x
2. Step 2: Convert to fraction form
   10,945.23/16,417.72 = 7,426.52/x
3. Step 3: Cross multiply
   10,945.23x = 16,417.72 × 7,426.52
4. Step 4: Simplify right side
   10,945.23x = 121,926,525.93
5. Step 5: Solve for x
   x = 121,926,525.93/10,945.23
6. Step 6: Final answer
   x = 11,139.70