Finding the Fourth Proportional to 11,763.32, 17,729.52 and 10,139.46

Step by Step Solution

1. Step 1: Write the proportion equation
   11,763.32 : 17,729.52 = 10,139.46 : x
2. Step 2: Convert to fraction form
   11,763.32/17,729.52 = 10,139.46/x
3. Step 3: Cross multiply
   11,763.32x = 17,729.52 × 10,139.46
4. Step 4: Simplify right side
   11,763.32x = 179,767,758.86
5. Step 5: Solve for x
   x = 179,767,758.86/11,763.32
6. Step 6: Final answer
   x = 15,282.07