Finding the Fourth Proportional to 36,902.82, 55,310.88 and 17,139.72

Step by Step Solution

1. Step 1: Write the proportion equation
   36,902.82 : 55,310.88 = 17,139.72 : x
2. Step 2: Convert to fraction form
   36,902.82/55,310.88 = 17,139.72/x
3. Step 3: Cross multiply
   36,902.82x = 55,310.88 × 17,139.72
4. Step 4: Simplify right side
   36,902.82x = 948,012,996.15
5. Step 5: Solve for x
   x = 948,012,996.15/36,902.82
6. Step 6: Final answer
   x = 25,689.45