Finding the Fourth Proportional to 11,422.69, 15,767.67 and 7,444.78

Step by Step Solution

1. Step 1: Write the proportion equation
   11,422.69 : 15,767.67 = 7,444.78 : x
2. Step 2: Convert to fraction form
   11,422.69/15,767.67 = 7,444.78/x
3. Step 3: Cross multiply
   11,422.69x = 15,767.67 × 7,444.78
4. Step 4: Simplify right side
   11,422.69x = 117,386,834.26
5. Step 5: Solve for x
   x = 117,386,834.26/11,422.69
6. Step 6: Final answer
   x = 10,276.64