Finding the Fourth Proportional to 493,498.72, 681,030.30 and 267,144.22

Step by Step Solution

1. Step 1: Write the proportion equation
   493,498.72 : 681,030.30 = 267,144.22 : x
2. Step 2: Convert to fraction form
   493,498.72/681,030.30 = 267,144.22/x
3. Step 3: Cross multiply
   493,498.72x = 681,030.30 × 267,144.22
4. Step 4: Simplify right side
   493,498.72x = 181,933,308,289.87
5. Step 5: Solve for x
   x = 181,933,308,289.87/493,498.72
6. Step 6: Final answer
   x = 368,660.14