Finding the Fourth Proportional to 547,499.58, 755,541.27 and 305,786.22

Step by Step Solution

1. Step 1: Write the proportion equation
   547,499.58 : 755,541.27 = 305,786.22 : x
2. Step 2: Convert to fraction form
   547,499.58/755,541.27 = 305,786.22/x
3. Step 3: Cross multiply
   547,499.58x = 755,541.27 × 305,786.22
4. Step 4: Simplify right side
   547,499.58x = 231,034,109,007.30
5. Step 5: Solve for x
   x = 231,034,109,007.30/547,499.58
6. Step 6: Final answer
   x = 421,980.43