Finding the Fourth Proportional to 43,426.54, 65,088.78 and 18,451

Step by Step Solution

1. Step 1: Write the proportion equation
   43,426.54 : 65,088.78 = 18,451 : x
2. Step 2: Convert to fraction form
   43,426.54/65,088.78 = 18,451/x
3. Step 3: Cross multiply
   43,426.54x = 65,088.78 × 18,451
4. Step 4: Simplify right side
   43,426.54x = 1,200,953,079.78
5. Step 5: Solve for x
   x = 1,200,953,079.78/43,426.54
6. Step 6: Final answer
   x = 27,654.82