Finding the Fourth Proportional to 3,902,945.56, 5,386,128.72 and 2,136,814.43

Step by Step Solution

1. Step 1: Write the proportion equation
   3,902,945.56 : 5,386,128.72 = 2,136,814.43 : x
2. Step 2: Convert to fraction form
   3,902,945.56/5,386,128.72 = 2,136,814.43/x
3. Step 3: Cross multiply
   3,902,945.56x = 5,386,128.72 × 2,136,814.43
4. Step 4: Simplify right side
   3,902,945.56x = 11,509,157,535,789.73
5. Step 5: Solve for x
   x = 11,509,157,535,789.73/3,902,945.56
6. Step 6: Final answer
   x = 2,948,838.86