Finding the Fourth Proportional to 13,863.32, 19,131.64 and 7,575.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,863.32 : 19,131.64 = 7,575.56 : x
2. Step 2: Convert to fraction form
   13,863.32/19,131.64 = 7,575.56/x
3. Step 3: Cross multiply
   13,863.32x = 19,131.64 × 7,575.56
4. Step 4: Simplify right side
   13,863.32x = 144,932,886.72
5. Step 5: Solve for x
   x = 144,932,886.72/13,863.32
6. Step 6: Final answer
   x = 10,454.41