Finding the Fourth Proportional to 12,427.77, 17,150.73 and 7,123.59

Step by Step Solution

1. Step 1: Write the proportion equation
   12,427.77 : 17,150.73 = 7,123.59 : x
2. Step 2: Convert to fraction form
   12,427.77/17,150.73 = 7,123.59/x
3. Step 3: Cross multiply
   12,427.77x = 17,150.73 × 7,123.59
4. Step 4: Simplify right side
   12,427.77x = 122,174,768.72
5. Step 5: Solve for x
   x = 122,174,768.72/12,427.77
6. Step 6: Final answer
   x = 9,830.79