Finding the Fourth Proportional to 76,969.89, 106,207.83 and 42,974.42

Step by Step Solution

1. Step 1: Write the proportion equation
   76,969.89 : 106,207.83 = 42,974.42 : x
2. Step 2: Convert to fraction form
   76,969.89/106,207.83 = 42,974.42/x
3. Step 3: Cross multiply
   76,969.89x = 106,207.83 × 42,974.42
4. Step 4: Simplify right side
   76,969.89x = 4,564,219,362.67
5. Step 5: Solve for x
   x = 4,564,219,362.67/76,969.89
6. Step 6: Final answer
   x = 59,298.76