Finding the Fourth Proportional to 485,626.72, 728,548.32 and 148,714.72

Step by Step Solution

1. Step 1: Write the proportion equation
   485,626.72 : 728,548.32 = 148,714.72 : x
2. Step 2: Convert to fraction form
   485,626.72/728,548.32 = 148,714.72/x
3. Step 3: Cross multiply
   485,626.72x = 728,548.32 × 148,714.72
4. Step 4: Simplify right side
   485,626.72x = 108,345,859,415.27
5. Step 5: Solve for x
   x = 108,345,859,415.27/485,626.72
6. Step 6: Final answer
   x = 223,105.23