Finding the Fourth Proportional to 12,840.93, 17,719.56 and 7,535.03

Step by Step Solution

1. Step 1: Write the proportion equation
   12,840.93 : 17,719.56 = 7,535.03 : x
2. Step 2: Convert to fraction form
   12,840.93/17,719.56 = 7,535.03/x
3. Step 3: Cross multiply
   12,840.93x = 17,719.56 × 7,535.03
4. Step 4: Simplify right side
   12,840.93x = 133,517,327.59
5. Step 5: Solve for x
   x = 133,517,327.59/12,840.93
6. Step 6: Final answer
   x = 10,397.79