Finding the Fourth Proportional to 11,066.84, 15,258.94 and 9,042.77

Step by Step Solution

1. Step 1: Write the proportion equation
   11,066.84 : 15,258.94 = 9,042.77 : x
2. Step 2: Convert to fraction form
   11,066.84/15,258.94 = 9,042.77/x
3. Step 3: Cross multiply
   11,066.84x = 15,258.94 × 9,042.77
4. Step 4: Simplify right side
   11,066.84x = 137,983,100.40
5. Step 5: Solve for x
   x = 137,983,100.40/11,066.84
6. Step 6: Final answer
   x = 12,468.16