Finding the Fourth Proportional to 31,066.86, 42,872.76 and 17,637.84

Step by Step Solution

1. Step 1: Write the proportion equation
   31,066.86 : 42,872.76 = 17,637.84 : x
2. Step 2: Convert to fraction form
   31,066.86/42,872.76 = 17,637.84/x
3. Step 3: Cross multiply
   31,066.86x = 42,872.76 × 17,637.84
4. Step 4: Simplify right side
   31,066.86x = 756,182,881.24
5. Step 5: Solve for x
   x = 756,182,881.24/31,066.86
6. Step 6: Final answer
   x = 24,340.50