Finding the Fourth Proportional to 17,773.51, 26,661.68 and 10,378.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,773.51 : 26,661.68 = 10,378.72 : x
2. Step 2: Convert to fraction form
   17,773.51/26,661.68 = 10,378.72/x
3. Step 3: Cross multiply
   17,773.51x = 26,661.68 × 10,378.72
4. Step 4: Simplify right side
   17,773.51x = 276,714,111.45
5. Step 5: Solve for x
   x = 276,714,111.45/17,773.51
6. Step 6: Final answer
   x = 15,568.91