Finding the Fourth Proportional to 72,279, 99,806.58 and 45,466.38

Step by Step Solution

1. Step 1: Write the proportion equation
   72,279 : 99,806.58 = 45,466.38 : x
2. Step 2: Convert to fraction form
   72,279/99,806.58 = 45,466.38/x
3. Step 3: Cross multiply
   72,279x = 99,806.58 × 45,466.38
4. Step 4: Simplify right side
   72,279x = 4,537,843,892.78
5. Step 5: Solve for x
   x = 4,537,843,892.78/72,279
6. Step 6: Final answer
   x = 62,782.33