Finding the Fourth Proportional to 5,161,943.99, 7,123,439.54 and 2,870,084.63

Step by Step Solution

1. Step 1: Write the proportion equation
   5,161,943.99 : 7,123,439.54 = 2,870,084.63 : x
2. Step 2: Convert to fraction form
   5,161,943.99/7,123,439.54 = 2,870,084.63/x
3. Step 3: Cross multiply
   5,161,943.99x = 7,123,439.54 × 2,870,084.63
4. Step 4: Simplify right side
   5,161,943.99x = 20,444,874,286,520.65
5. Step 5: Solve for x
   x = 20,444,874,286,520.65/5,161,943.99
6. Step 6: Final answer
   x = 3,960,692.78