Finding the Fourth Proportional to 12,405.02, 17,119.31 and 7,101.54

Step by Step Solution

1. Step 1: Write the proportion equation
   12,405.02 : 17,119.31 = 7,101.54 : x
2. Step 2: Convert to fraction form
   12,405.02/17,119.31 = 7,101.54/x
3. Step 3: Cross multiply
   12,405.02x = 17,119.31 × 7,101.54
4. Step 4: Simplify right side
   12,405.02x = 121,573,429.23
5. Step 5: Solve for x
   x = 121,573,429.23/12,405.02
6. Step 6: Final answer
   x = 9,800.35