Finding the Fourth Proportional to 17,642.96, 26,466.58 and 7,784.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,642.96 : 26,466.58 = 7,784.72 : x
2. Step 2: Convert to fraction form
   17,642.96/26,466.58 = 7,784.72/x
3. Step 3: Cross multiply
   17,642.96x = 26,466.58 × 7,784.72
4. Step 4: Simplify right side
   17,642.96x = 206,034,914.66
5. Step 5: Solve for x
   x = 206,034,914.66/17,642.96
6. Step 6: Final answer
   x = 11,678.02