Finding the Fourth Proportional to 5,123,747.80, 7,685,499.18 and 1,665,483.15

Step by Step Solution

1. Step 1: Write the proportion equation
   5,123,747.80 : 7,685,499.18 = 1,665,483.15 : x
2. Step 2: Convert to fraction form
   5,123,747.80/7,685,499.18 = 1,665,483.15/x
3. Step 3: Cross multiply
   5,123,747.80x = 7,685,499.18 × 1,665,483.15
4. Step 4: Simplify right side
   5,123,747.80x = 12,800,069,383,628.82
5. Step 5: Solve for x
   x = 12,800,069,383,628.82/5,123,747.80
6. Step 6: Final answer
   x = 2,498,184.90