Finding the Fourth Proportional to 10,470.91, 14,434.90 and 7,485.65

Step by Step Solution

1. Step 1: Write the proportion equation
   10,470.91 : 14,434.90 = 7,485.65 : x
2. Step 2: Convert to fraction form
   10,470.91/14,434.90 = 7,485.65/x
3. Step 3: Cross multiply
   10,470.91x = 14,434.90 × 7,485.65
4. Step 4: Simplify right side
   10,470.91x = 108,054,609.19
5. Step 5: Solve for x
   x = 108,054,609.19/10,470.91
6. Step 6: Final answer
   x = 10,319.51