Finding the Fourth Proportional to 11,375.88, 15,704.91 and 7,858.02

Step by Step Solution

1. Step 1: Write the proportion equation
   11,375.88 : 15,704.91 = 7,858.02 : x
2. Step 2: Convert to fraction form
   11,375.88/15,704.91 = 7,858.02/x
3. Step 3: Cross multiply
   11,375.88x = 15,704.91 × 7,858.02
4. Step 4: Simplify right side
   11,375.88x = 123,409,496.88
5. Step 5: Solve for x
   x = 123,409,496.88/11,375.88
6. Step 6: Final answer
   x = 10,848.35