Finding the Fourth Proportional to 31,206.40, 43,061 and 17,777.68

Step by Step Solution

1. Step 1: Write the proportion equation
   31,206.40 : 43,061 = 17,777.68 : x
2. Step 2: Convert to fraction form
   31,206.40/43,061 = 17,777.68/x
3. Step 3: Cross multiply
   31,206.40x = 43,061 × 17,777.68
4. Step 4: Simplify right side
   31,206.40x = 765,524,678.48
5. Step 5: Solve for x
   x = 765,524,678.48/31,206.40
6. Step 6: Final answer
   x = 24,531.02