Finding the Fourth Proportional to 76,966, 106,214.72 and 42,510.56

Step by Step Solution

1. Step 1: Write the proportion equation
   76,966 : 106,214.72 = 42,510.56 : x
2. Step 2: Convert to fraction form
   76,966/106,214.72 = 42,510.56/x
3. Step 3: Cross multiply
   76,966x = 106,214.72 × 42,510.56
4. Step 4: Simplify right side
   76,966x = 4,515,247,227.44
5. Step 5: Solve for x
   x = 4,515,247,227.44/76,966
6. Step 6: Final answer
   x = 58,665.48