Finding the Fourth Proportional to 10,091.40, 13,926.46 and 5,554.26

Step by Step Solution

1. Step 1: Write the proportion equation
   10,091.40 : 13,926.46 = 5,554.26 : x
2. Step 2: Convert to fraction form
   10,091.40/13,926.46 = 5,554.26/x
3. Step 3: Cross multiply
   10,091.40x = 13,926.46 × 5,554.26
4. Step 4: Simplify right side
   10,091.40x = 77,351,179.72
5. Step 5: Solve for x
   x = 77,351,179.72/10,091.40
6. Step 6: Final answer
   x = 7,665.06