Finding the Fourth Proportional to 73,922.23, 102,012.72 and 39,930.72

Step by Step Solution

1. Step 1: Write the proportion equation
   73,922.23 : 102,012.72 = 39,930.72 : x
2. Step 2: Convert to fraction form
   73,922.23/102,012.72 = 39,930.72/x
3. Step 3: Cross multiply
   73,922.23x = 102,012.72 × 39,930.72
4. Step 4: Simplify right side
   73,922.23x = 4,073,441,737.21
5. Step 5: Solve for x
   x = 4,073,441,737.21/73,922.23
6. Step 6: Final answer
   x = 55,104.42