Finding the Fourth Proportional to 51,196.98, 70,655.94 and 28,543.31

Step by Step Solution

1. Step 1: Write the proportion equation
   51,196.98 : 70,655.94 = 28,543.31 : x
2. Step 2: Convert to fraction form
   51,196.98/70,655.94 = 28,543.31/x
3. Step 3: Cross multiply
   51,196.98x = 70,655.94 × 28,543.31
4. Step 4: Simplify right side
   51,196.98x = 2,016,754,398.76
5. Step 5: Solve for x
   x = 2,016,754,398.76/51,196.98
6. Step 6: Final answer
   x = 39,392.06