Finding the Fourth Proportional to 82,940,014.80, 124,350,993.72 and 31,778,773.20

Step by Step Solution

1. Step 1: Write the proportion equation
   82,940,014.80 : 124,350,993.72 = 31,778,773.20 : x
2. Step 2: Convert to fraction form
   82,940,014.80/124,350,993.72 = 31,778,773.20/x
3. Step 3: Cross multiply
   82,940,014.80x = 124,350,993.72 × 31,778,773.20
4. Step 4: Simplify right side
   82,940,014.80x = 3,951,722,026,622,504
5. Step 5: Solve for x
   x = 3,951,722,026,622,504/82,940,014.80
6. Step 6: Final answer
   x = 47,645,542.82