Finding the Fourth Proportional to 11,870.12, 16,380.86 and 6,565.29

Step by Step Solution

1. Step 1: Write the proportion equation
   11,870.12 : 16,380.86 = 6,565.29 : x
2. Step 2: Convert to fraction form
   11,870.12/16,380.86 = 6,565.29/x
3. Step 3: Cross multiply
   11,870.12x = 16,380.86 × 6,565.29
4. Step 4: Simplify right side
   11,870.12x = 107,545,063.52
5. Step 5: Solve for x
   x = 107,545,063.52/11,870.12
6. Step 6: Final answer
   x = 9,060.15