Finding the Fourth Proportional to 38,048.86, 57,086.82 and 16,987

Step by Step Solution

1. Step 1: Write the proportion equation
   38,048.86 : 57,086.82 = 16,987 : x
2. Step 2: Convert to fraction form
   38,048.86/57,086.82 = 16,987/x
3. Step 3: Cross multiply
   38,048.86x = 57,086.82 × 16,987
4. Step 4: Simplify right side
   38,048.86x = 969,733,811.34
5. Step 5: Solve for x
   x = 969,733,811.34/38,048.86
6. Step 6: Final answer
   x = 25,486.54