Finding the Fourth Proportional to 82,911,620.72, 124,383,371.76 and 31,789,652.48

Step by Step Solution

1. Step 1: Write the proportion equation
   82,911,620.72 : 124,383,371.76 = 31,789,652.48 : x
2. Step 2: Convert to fraction form
   82,911,620.72/124,383,371.76 = 31,789,652.48/x
3. Step 3: Cross multiply
   82,911,620.72x = 124,383,371.76 × 31,789,652.48
4. Step 4: Simplify right side
   82,911,620.72x = 3,954,104,162,541,046
5. Step 5: Solve for x
   x = 3,954,104,162,541,046/82,911,620.72
6. Step 6: Final answer
   x = 47,690,590.63