Finding the Fourth Proportional to 56,999.50, 78,659.31 and 31,849

Step by Step Solution

1. Step 1: Write the proportion equation
   56,999.50 : 78,659.31 = 31,849 : x
2. Step 2: Convert to fraction form
   56,999.50/78,659.31 = 31,849/x
3. Step 3: Cross multiply
   56,999.50x = 78,659.31 × 31,849
4. Step 4: Simplify right side
   56,999.50x = 2,505,220,364.19
5. Step 5: Solve for x
   x = 2,505,220,364.19/56,999.50
6. Step 6: Final answer
   x = 43,951.62