Finding the Fourth Proportional to 13,953.32, 19,255.71 and 7,665.83

Step by Step Solution

1. Step 1: Write the proportion equation
   13,953.32 : 19,255.71 = 7,665.83 : x
2. Step 2: Convert to fraction form
   13,953.32/19,255.71 = 7,665.83/x
3. Step 3: Cross multiply
   13,953.32x = 19,255.71 × 7,665.83
4. Step 4: Simplify right side
   13,953.32x = 147,610,864.78
5. Step 5: Solve for x
   x = 147,610,864.78/13,953.32
6. Step 6: Final answer
   x = 10,578.91