Finding the Fourth Proportional to 72,286, 99,816.24 and 45,473.38

Step by Step Solution

1. Step 1: Write the proportion equation
   72,286 : 99,816.24 = 45,473.38 : x
2. Step 2: Convert to fraction form
   72,286/99,816.24 = 45,473.38/x
3. Step 3: Cross multiply
   72,286x = 99,816.24 × 45,473.38
4. Step 4: Simplify right side
   72,286x = 4,538,981,811.69
5. Step 5: Solve for x
   x = 4,538,981,811.69/72,286
6. Step 6: Final answer
   x = 62,791.99