Finding the Fourth Proportional to 11,419.92, 17,129.69 and 5,870.07

Step by Step Solution

1. Step 1: Write the proportion equation
   11,419.92 : 17,129.69 = 5,870.07 : x
2. Step 2: Convert to fraction form
   11,419.92/17,129.69 = 5,870.07/x
3. Step 3: Cross multiply
   11,419.92x = 17,129.69 × 5,870.07
4. Step 4: Simplify right side
   11,419.92x = 100,552,450.03
5. Step 5: Solve for x
   x = 100,552,450.03/11,419.92
6. Step 6: Final answer
   x = 8,805.00