Finding the Fourth Proportional to 103,151.25, 154,449 and 67,524.21

Step by Step Solution

1. Step 1: Write the proportion equation
   103,151.25 : 154,449 = 67,524.21 : x
2. Step 2: Convert to fraction form
   103,151.25/154,449 = 67,524.21/x
3. Step 3: Cross multiply
   103,151.25x = 154,449 × 67,524.21
4. Step 4: Simplify right side
   103,151.25x = 10,429,046,710.29
5. Step 5: Solve for x
   x = 10,429,046,710.29/103,151.25
6. Step 6: Final answer
   x = 101,104.41