Finding the Fourth Proportional to 31,086.50, 42,897.84 and 17,655.99

Step by Step Solution

1. Step 1: Write the proportion equation
   31,086.50 : 42,897.84 = 17,655.99 : x
2. Step 2: Convert to fraction form
   31,086.50/42,897.84 = 17,655.99/x
3. Step 3: Cross multiply
   31,086.50x = 42,897.84 × 17,655.99
4. Step 4: Simplify right side
   31,086.50x = 757,403,606.98
5. Step 5: Solve for x
   x = 757,403,606.98/31,086.50
6. Step 6: Final answer
   x = 24,364.39