Finding the Fourth Proportional to 12,838,539.42, 19,257,614.73 and 3,123,243.90

Step by Step Solution

1. Step 1: Write the proportion equation
   12,838,539.42 : 19,257,614.73 = 3,123,243.90 : x
2. Step 2: Convert to fraction form
   12,838,539.42/19,257,614.73 = 3,123,243.90/x
3. Step 3: Cross multiply
   12,838,539.42x = 19,257,614.73 × 3,123,243.90
4. Step 4: Simplify right side
   12,838,539.42x = 60,146,227,734,022.65
5. Step 5: Solve for x
   x = 60,146,227,734,022.65/12,838,539.42
6. Step 6: Final answer
   x = 4,684,818.56