Finding the Fourth Proportional to 12,301.04, 18,435.98 and 7,857

Step by Step Solution

1. Step 1: Write the proportion equation
   12,301.04 : 18,435.98 = 7,857 : x
2. Step 2: Convert to fraction form
   12,301.04/18,435.98 = 7,857/x
3. Step 3: Cross multiply
   12,301.04x = 18,435.98 × 7,857
4. Step 4: Simplify right side
   12,301.04x = 144,851,494.86
5. Step 5: Solve for x
   x = 144,851,494.86/12,301.04
6. Step 6: Final answer
   x = 11,775.55