Finding the Fourth Proportional to 72,686,862.27, 100,307,870.55 and 39,647,109.69

Step by Step Solution

1. Step 1: Write the proportion equation
   72,686,862.27 : 100,307,870.55 = 39,647,109.69 : x
2. Step 2: Convert to fraction form
   72,686,862.27/100,307,870.55 = 39,647,109.69/x
3. Step 3: Cross multiply
   72,686,862.27x = 100,307,870.55 × 39,647,109.69
4. Step 4: Simplify right side
   72,686,862.27x = 3,976,917,146,466,170.50
5. Step 5: Solve for x
   x = 3,976,917,146,466,170.50/72,686,862.27
6. Step 6: Final answer
   x = 54,713,011.71