Finding the Fourth Proportional to 10,547.69, 14,587.70 and 9,426.65

Step by Step Solution

1. Step 1: Write the proportion equation
   10,547.69 : 14,587.70 = 9,426.65 : x
2. Step 2: Convert to fraction form
   10,547.69/14,587.70 = 9,426.65/x
3. Step 3: Cross multiply
   10,547.69x = 14,587.70 × 9,426.65
4. Step 4: Simplify right side
   10,547.69x = 137,513,022.13
5. Step 5: Solve for x
   x = 137,513,022.13/10,547.69
6. Step 6: Final answer
   x = 13,037.27