Finding the Fourth Proportional to 851,142.47, 1,276,900.47 and 252,150.48

Step by Step Solution

1. Step 1: Write the proportion equation
   851,142.47 : 1,276,900.47 = 252,150.48 : x
2. Step 2: Convert to fraction form
   851,142.47/1,276,900.47 = 252,150.48/x
3. Step 3: Cross multiply
   851,142.47x = 1,276,900.47 × 252,150.48
4. Step 4: Simplify right side
   851,142.47x = 321,971,066,422.73
5. Step 5: Solve for x
   x = 321,971,066,422.73/851,142.47
6. Step 6: Final answer
   x = 378,281.05