Finding the Fourth Proportional to 26,499.06, 39,748.82 and 7,779.41

Step by Step Solution

1. Step 1: Write the proportion equation
   26,499.06 : 39,748.82 = 7,779.41 : x
2. Step 2: Convert to fraction form
   26,499.06/39,748.82 = 7,779.41/x
3. Step 3: Cross multiply
   26,499.06x = 39,748.82 × 7,779.41
4. Step 4: Simplify right side
   26,499.06x = 309,222,130.16
5. Step 5: Solve for x
   x = 309,222,130.16/26,499.06
6. Step 6: Final answer
   x = 11,669.17