Finding the Fourth Proportional to 542,022.80, 747,981.75 and 300,300.51

Step by Step Solution

1. Step 1: Write the proportion equation
   542,022.80 : 747,981.75 = 300,300.51 : x
2. Step 2: Convert to fraction form
   542,022.80/747,981.75 = 300,300.51/x
3. Step 3: Cross multiply
   542,022.80x = 747,981.75 × 300,300.51
4. Step 4: Simplify right side
   542,022.80x = 224,619,300,995.69
5. Step 5: Solve for x
   x = 224,619,300,995.69/542,022.80
6. Step 6: Final answer
   x = 414,409.33