Finding the Fourth Proportional to 86,666.16, 129,946.56 and 34,012.56

Step by Step Solution

1. Step 1: Write the proportion equation
   86,666.16 : 129,946.56 = 34,012.56 : x
2. Step 2: Convert to fraction form
   86,666.16/129,946.56 = 34,012.56/x
3. Step 3: Cross multiply
   86,666.16x = 129,946.56 × 34,012.56
4. Step 4: Simplify right side
   86,666.16x = 4,419,815,168.79
5. Step 5: Solve for x
   x = 4,419,815,168.79/86,666.16
6. Step 6: Final answer
   x = 50,998.17