Finding the Fourth Proportional to 10,417.32, 15,681.77 and 9,345.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,417.32 : 15,681.77 = 9,345.69 : x
2. Step 2: Convert to fraction form
   10,417.32/15,681.77 = 9,345.69/x
3. Step 3: Cross multiply
   10,417.32x = 15,681.77 × 9,345.69
4. Step 4: Simplify right side
   10,417.32x = 146,556,898.50
5. Step 5: Solve for x
   x = 146,556,898.50/10,417.32
6. Step 6: Final answer
   x = 14,068.58