Finding the Fourth Proportional to 31,236.80, 43,107.82 and 17,807.81

Step by Step Solution

1. Step 1: Write the proportion equation
   31,236.80 : 43,107.82 = 17,807.81 : x
2. Step 2: Convert to fraction form
   31,236.80/43,107.82 = 17,807.81/x
3. Step 3: Cross multiply
   31,236.80x = 43,107.82 × 17,807.81
4. Step 4: Simplify right side
   31,236.80x = 767,655,931.32
5. Step 5: Solve for x
   x = 767,655,931.32/31,236.80
6. Step 6: Final answer
   x = 24,575.37