Finding the Fourth Proportional to 129,798.34, 195,008.55 and 83,142.34

Step by Step Solution

1. Step 1: Write the proportion equation
   129,798.34 : 195,008.55 = 83,142.34 : x
2. Step 2: Convert to fraction form
   129,798.34/195,008.55 = 83,142.34/x
3. Step 3: Cross multiply
   129,798.34x = 195,008.55 × 83,142.34
4. Step 4: Simplify right side
   129,798.34x = 16,213,467,167.01
5. Step 5: Solve for x
   x = 16,213,467,167.01/129,798.34
6. Step 6: Final answer
   x = 124,912.75