Finding the Fourth Proportional to 107,434.10, 161,151.15 and 82,522.10

Step by Step Solution

1. Step 1: Write the proportion equation
   107,434.10 : 161,151.15 = 82,522.10 : x
2. Step 2: Convert to fraction form
   107,434.10/161,151.15 = 82,522.10/x
3. Step 3: Cross multiply
   107,434.10x = 161,151.15 × 82,522.10
4. Step 4: Simplify right side
   107,434.10x = 13,298,531,315.42
5. Step 5: Solve for x
   x = 13,298,531,315.42/107,434.10
6. Step 6: Final answer
   x = 123,783.15