Finding the Fourth Proportional to 5,109,561.38, 7,664,369.78 and 1,515,359.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,109,561.38 : 7,664,369.78 = 1,515,359.50 : x
2. Step 2: Convert to fraction form
   5,109,561.38/7,664,369.78 = 1,515,359.50/x
3. Step 3: Cross multiply
   5,109,561.38x = 7,664,369.78 × 1,515,359.50
4. Step 4: Simplify right side
   5,109,561.38x = 11,614,275,557,635.91
5. Step 5: Solve for x
   x = 11,614,275,557,635.91/5,109,561.38
6. Step 6: Final answer
   x = 2,273,047.47