Finding the Fourth Proportional to 12,858.32, 19,287.18 and 5,932.80

Step by Step Solution

1. Step 1: Write the proportion equation
   12,858.32 : 19,287.18 = 5,932.80 : x
2. Step 2: Convert to fraction form
   12,858.32/19,287.18 = 5,932.80/x
3. Step 3: Cross multiply
   12,858.32x = 19,287.18 × 5,932.80
4. Step 4: Simplify right side
   12,858.32x = 114,426,981.50
5. Step 5: Solve for x
   x = 114,426,981.50/12,858.32
6. Step 6: Final answer
   x = 8,899.06