Finding the Fourth Proportional to 9,911.06, 13,677.15 and 5,719.22

Step by Step Solution

1. Step 1: Write the proportion equation
   9,911.06 : 13,677.15 = 5,719.22 : x
2. Step 2: Convert to fraction form
   9,911.06/13,677.15 = 5,719.22/x
3. Step 3: Cross multiply
   9,911.06x = 13,677.15 × 5,719.22
4. Step 4: Simplify right side
   9,911.06x = 78,222,629.82
5. Step 5: Solve for x
   x = 78,222,629.82/9,911.06
6. Step 6: Final answer
   x = 7,892.46