Finding the Fourth Proportional to 70,522.68, 105,793.89 and 20,606.43

Step by Step Solution

1. Step 1: Write the proportion equation
   70,522.68 : 105,793.89 = 20,606.43 : x
2. Step 2: Convert to fraction form
   70,522.68/105,793.89 = 20,606.43/x
3. Step 3: Cross multiply
   70,522.68x = 105,793.89 × 20,606.43
4. Step 4: Simplify right side
   70,522.68x = 2,180,034,388.71
5. Step 5: Solve for x
   x = 2,180,034,388.71/70,522.68
6. Step 6: Final answer
   x = 30,912.53