Finding the Fourth Proportional to 146,519.28, 202,196.72 and 79,451.28

Step by Step Solution

1. Step 1: Write the proportion equation
   146,519.28 : 202,196.72 = 79,451.28 : x
2. Step 2: Convert to fraction form
   146,519.28/202,196.72 = 79,451.28/x
3. Step 3: Cross multiply
   146,519.28x = 202,196.72 × 79,451.28
4. Step 4: Simplify right side
   146,519.28x = 16,064,788,215.80
5. Step 5: Solve for x
   x = 16,064,788,215.80/146,519.28
6. Step 6: Final answer
   x = 109,642.83