Finding the Fourth Proportional to 2,142,456.73, 3,213,703.27 and 545,021.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,142,456.73 : 3,213,703.27 = 545,021.17 : x
2. Step 2: Convert to fraction form
   2,142,456.73/3,213,703.27 = 545,021.17/x
3. Step 3: Cross multiply
   2,142,456.73x = 3,213,703.27 × 545,021.17
4. Step 4: Simplify right side
   2,142,456.73x = 1,751,536,300,179.71
5. Step 5: Solve for x
   x = 1,751,536,300,179.71/2,142,456.73
6. Step 6: Final answer
   x = 817,536.37