Finding the Fourth Proportional to 12,407.83, 17,123.56 and 7,102.53

Step by Step Solution

1. Step 1: Write the proportion equation
   12,407.83 : 17,123.56 = 7,102.53 : x
2. Step 2: Convert to fraction form
   12,407.83/17,123.56 = 7,102.53/x
3. Step 3: Cross multiply
   12,407.83x = 17,123.56 × 7,102.53
4. Step 4: Simplify right side
   12,407.83x = 121,620,580.85
5. Step 5: Solve for x
   x = 121,620,580.85/12,407.83
6. Step 6: Final answer
   x = 9,801.92