Finding the Fourth Proportional to 561,061.33, 842,837.69 and 347,986.78

Step by Step Solution

1. Step 1: Write the proportion equation
   561,061.33 : 842,837.69 = 347,986.78 : x
2. Step 2: Convert to fraction form
   561,061.33/842,837.69 = 347,986.78/x
3. Step 3: Cross multiply
   561,061.33x = 842,837.69 × 347,986.78
4. Step 4: Simplify right side
   561,061.33x = 293,296,369,958.71
5. Step 5: Solve for x
   x = 293,296,369,958.71/561,061.33
6. Step 6: Final answer
   x = 522,752.78