Finding the Fourth Proportional to 12,407.45, 17,123.04 and 7,102.14

Step by Step Solution

1. Step 1: Write the proportion equation
   12,407.45 : 17,123.04 = 7,102.14 : x
2. Step 2: Convert to fraction form
   12,407.45/17,123.04 = 7,102.14/x
3. Step 3: Cross multiply
   12,407.45x = 17,123.04 × 7,102.14
4. Step 4: Simplify right side
   12,407.45x = 121,610,227.31
5. Step 5: Solve for x
   x = 121,610,227.31/12,407.45
6. Step 6: Final answer
   x = 9,801.39