Finding the Fourth Proportional to 10,906.56, 15,055.54 and 7,374.52

Step by Step Solution

1. Step 1: Write the proportion equation
   10,906.56 : 15,055.54 = 7,374.52 : x
2. Step 2: Convert to fraction form
   10,906.56/15,055.54 = 7,374.52/x
3. Step 3: Cross multiply
   10,906.56x = 15,055.54 × 7,374.52
4. Step 4: Simplify right side
   10,906.56x = 111,027,380.84
5. Step 5: Solve for x
   x = 111,027,380.84/10,906.56
6. Step 6: Final answer
   x = 10,179.87