Finding the Fourth Proportional to 38,109.05, 52,597.85 and 21,986.77

Step by Step Solution

1. Step 1: Write the proportion equation
   38,109.05 : 52,597.85 = 21,986.77 : x
2. Step 2: Convert to fraction form
   38,109.05/52,597.85 = 21,986.77/x
3. Step 3: Cross multiply
   38,109.05x = 52,597.85 × 21,986.77
4. Step 4: Simplify right side
   38,109.05x = 1,156,456,589.02
5. Step 5: Solve for x
   x = 1,156,456,589.02/38,109.05
6. Step 6: Final answer
   x = 30,345.99