Finding the Fourth Proportional to 12,427.32, 17,150.40 and 7,123.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,427.32 : 17,150.40 = 7,123.02 : x
2. Step 2: Convert to fraction form
   12,427.32/17,150.40 = 7,123.02/x
3. Step 3: Cross multiply
   12,427.32x = 17,150.40 × 7,123.02
4. Step 4: Simplify right side
   12,427.32x = 122,162,642.21
5. Step 5: Solve for x
   x = 122,162,642.21/12,427.32
6. Step 6: Final answer
   x = 9,830.17