Finding the Fourth Proportional to 157,469.99, 236,216.82 and 45,149.31

Step by Step Solution

1. Step 1: Write the proportion equation
   157,469.99 : 236,216.82 = 45,149.31 : x
2. Step 2: Convert to fraction form
   157,469.99/236,216.82 = 45,149.31/x
3. Step 3: Cross multiply
   157,469.99x = 236,216.82 × 45,149.31
4. Step 4: Simplify right side
   157,469.99x = 10,665,026,433.39
5. Step 5: Solve for x
   x = 10,665,026,433.39/157,469.99
6. Step 6: Final answer
   x = 67,727.36