Finding the Fourth Proportional to 17,642.67, 26,443.87 and 7,105.94

Step by Step Solution

1. Step 1: Write the proportion equation
   17,642.67 : 26,443.87 = 7,105.94 : x
2. Step 2: Convert to fraction form
   17,642.67/26,443.87 = 7,105.94/x
3. Step 3: Cross multiply
   17,642.67x = 26,443.87 × 7,105.94
4. Step 4: Simplify right side
   17,642.67x = 187,908,539.95
5. Step 5: Solve for x
   x = 187,908,539.95/17,642.67
6. Step 6: Final answer
   x = 10,650.80