Finding the Fourth Proportional to 84,819.30, 127,034.55 and 82,875.30

Step by Step Solution

1. Step 1: Write the proportion equation
   84,819.30 : 127,034.55 = 82,875.30 : x
2. Step 2: Convert to fraction form
   84,819.30/127,034.55 = 82,875.30/x
3. Step 3: Cross multiply
   84,819.30x = 127,034.55 × 82,875.30
4. Step 4: Simplify right side
   84,819.30x = 10,528,026,441.62
5. Step 5: Solve for x
   x = 10,528,026,441.62/84,819.30
6. Step 6: Final answer
   x = 124,123.01