Finding the Fourth Proportional to 30,810.86, 42,519 and 17,382.08

Step by Step Solution

1. Step 1: Write the proportion equation
   30,810.86 : 42,519 = 17,382.08 : x
2. Step 2: Convert to fraction form
   30,810.86/42,519 = 17,382.08/x
3. Step 3: Cross multiply
   30,810.86x = 42,519 × 17,382.08
4. Step 4: Simplify right side
   30,810.86x = 739,068,659.52
5. Step 5: Solve for x
   x = 739,068,659.52/30,810.86
6. Step 6: Final answer
   x = 23,987.28