Finding the Fourth Proportional to 51,585,452.96, 71,187,922.76 and 28,380,081.72

Step by Step Solution

1. Step 1: Write the proportion equation
   51,585,452.96 : 71,187,922.76 = 28,380,081.72 : x
2. Step 2: Convert to fraction form
   51,585,452.96/71,187,922.76 = 28,380,081.72/x
3. Step 3: Cross multiply
   51,585,452.96x = 71,187,922.76 × 28,380,081.72
4. Step 4: Simplify right side
   51,585,452.96x = 2,020,319,065,405,848
5. Step 5: Solve for x
   x = 2,020,319,065,405,848/51,585,452.96
6. Step 6: Final answer
   x = 39,164,511.49