Finding the Fourth Proportional to 11,054.93, 16,586.35 and 5,507.78

Step by Step Solution

1. Step 1: Write the proportion equation
   11,054.93 : 16,586.35 = 5,507.78 : x
2. Step 2: Convert to fraction form
   11,054.93/16,586.35 = 5,507.78/x
3. Step 3: Cross multiply
   11,054.93x = 16,586.35 × 5,507.78
4. Step 4: Simplify right side
   11,054.93x = 91,353,870.10
5. Step 5: Solve for x
   x = 91,353,870.10/11,054.93
6. Step 6: Final answer
   x = 8,263.64