Finding the Fourth Proportional to 17,780.15, 26,661.27 and 5,929.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,780.15 : 26,661.27 = 5,929.72 : x
2. Step 2: Convert to fraction form
   17,780.15/26,661.27 = 5,929.72/x
3. Step 3: Cross multiply
   17,780.15x = 26,661.27 × 5,929.72
4. Step 4: Simplify right side
   17,780.15x = 158,093,865.94
5. Step 5: Solve for x
   x = 158,093,865.94/17,780.15
6. Step 6: Final answer
   x = 8,891.59