Finding the Fourth Proportional to 10,150.56, 13,977.21 and 9,558.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,150.56 : 13,977.21 = 9,558.72 : x
2. Step 2: Convert to fraction form
   10,150.56/13,977.21 = 9,558.72/x
3. Step 3: Cross multiply
   10,150.56x = 13,977.21 × 9,558.72
4. Step 4: Simplify right side
   10,150.56x = 133,604,236.77
5. Step 5: Solve for x
   x = 133,604,236.77/10,150.56
6. Step 6: Final answer
   x = 13,162.25