Finding the Fourth Proportional to 36,903.20, 55,375.86 and 20,048.72

Step by Step Solution

1. Step 1: Write the proportion equation
   36,903.20 : 55,375.86 = 20,048.72 : x
2. Step 2: Convert to fraction form
   36,903.20/55,375.86 = 20,048.72/x
3. Step 3: Cross multiply
   36,903.20x = 55,375.86 × 20,048.72
4. Step 4: Simplify right side
   36,903.20x = 1,110,215,111.90
5. Step 5: Solve for x
   x = 1,110,215,111.90/36,903.20
6. Step 6: Final answer
   x = 30,084.52