Finding the Fourth Proportional to 36,826.96, 55,200.72 and 18,085.20

Step by Step Solution

1. Step 1: Write the proportion equation
   36,826.96 : 55,200.72 = 18,085.20 : x
2. Step 2: Convert to fraction form
   36,826.96/55,200.72 = 18,085.20/x
3. Step 3: Cross multiply
   36,826.96x = 55,200.72 × 18,085.20
4. Step 4: Simplify right side
   36,826.96x = 998,316,061.34
5. Step 5: Solve for x
   x = 998,316,061.34/36,826.96
6. Step 6: Final answer
   x = 27,108.29