Finding the Fourth Proportional to 31,104.47, 42,927.57 and 17,678.99

Step by Step Solution

1. Step 1: Write the proportion equation
   31,104.47 : 42,927.57 = 17,678.99 : x
2. Step 2: Convert to fraction form
   31,104.47/42,927.57 = 17,678.99/x
3. Step 3: Cross multiply
   31,104.47x = 42,927.57 × 17,678.99
4. Step 4: Simplify right side
   31,104.47x = 758,916,188.07
5. Step 5: Solve for x
   x = 758,916,188.07/31,104.47
6. Step 6: Final answer
   x = 24,398.94