Finding the Fourth Proportional to 448,103.34, 672,118.16 and 148,485.96

Step by Step Solution

1. Step 1: Write the proportion equation
   448,103.34 : 672,118.16 = 148,485.96 : x
2. Step 2: Convert to fraction form
   448,103.34/672,118.16 = 148,485.96/x
3. Step 3: Cross multiply
   448,103.34x = 672,118.16 × 148,485.96
4. Step 4: Simplify right side
   448,103.34x = 99,800,109,478.60
5. Step 5: Solve for x
   x = 99,800,109,478.60/448,103.34
6. Step 6: Final answer
   x = 222,716.73