Finding the Fourth Proportional to 15,155.69, 22,736.61 and 6,390.59

Step by Step Solution

1. Step 1: Write the proportion equation
   15,155.69 : 22,736.61 = 6,390.59 : x
2. Step 2: Convert to fraction form
   15,155.69/22,736.61 = 6,390.59/x
3. Step 3: Cross multiply
   15,155.69x = 22,736.61 × 6,390.59
4. Step 4: Simplify right side
   15,155.69x = 145,300,238.82
5. Step 5: Solve for x
   x = 145,300,238.82/15,155.69
6. Step 6: Final answer
   x = 9,587.18