Finding the Fourth Proportional to 23,426.15, 35,131.86 and 7,840.13

Step by Step Solution

1. Step 1: Write the proportion equation
   23,426.15 : 35,131.86 = 7,840.13 : x
2. Step 2: Convert to fraction form
   23,426.15/35,131.86 = 7,840.13/x
3. Step 3: Cross multiply
   23,426.15x = 35,131.86 × 7,840.13
4. Step 4: Simplify right side
   23,426.15x = 275,438,173.88
5. Step 5: Solve for x
   x = 275,438,173.88/23,426.15
6. Step 6: Final answer
   x = 11,757.73