Finding the Fourth Proportional to 31,864.74, 43,971.30 and 19,927.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,864.74 : 43,971.30 = 19,927.50 : x
2. Step 2: Convert to fraction form
   31,864.74/43,971.30 = 19,927.50/x
3. Step 3: Cross multiply
   31,864.74x = 43,971.30 × 19,927.50
4. Step 4: Simplify right side
   31,864.74x = 876,238,080.75
5. Step 5: Solve for x
   x = 876,238,080.75/31,864.74
6. Step 6: Final answer
   x = 27,498.67