Finding the Fourth Proportional to 71,774.06, 99,047.48 and 39,942.42

Step by Step Solution

1. Step 1: Write the proportion equation
   71,774.06 : 99,047.48 = 39,942.42 : x
2. Step 2: Convert to fraction form
   71,774.06/99,047.48 = 39,942.42/x
3. Step 3: Cross multiply
   71,774.06x = 99,047.48 × 39,942.42
4. Step 4: Simplify right side
   71,774.06x = 3,956,196,046.10
5. Step 5: Solve for x
   x = 3,956,196,046.10/71,774.06
6. Step 6: Final answer
   x = 55,120.14