Finding the Fourth Proportional to 31,001.37, 42,780.99 and 17,573.86

Step by Step Solution

1. Step 1: Write the proportion equation
   31,001.37 : 42,780.99 = 17,573.86 : x
2. Step 2: Convert to fraction form
   31,001.37/42,780.99 = 17,573.86/x
3. Step 3: Cross multiply
   31,001.37x = 42,780.99 × 17,573.86
4. Step 4: Simplify right side
   31,001.37x = 751,827,128.92
5. Step 5: Solve for x
   x = 751,827,128.92/31,001.37
6. Step 6: Final answer
   x = 24,251.42