Finding the Fourth Proportional to 272,943.33, 409,488.69 and 83,398.50

Step by Step Solution

1. Step 1: Write the proportion equation
   272,943.33 : 409,488.69 = 83,398.50 : x
2. Step 2: Convert to fraction form
   272,943.33/409,488.69 = 83,398.50/x
3. Step 3: Cross multiply
   272,943.33x = 409,488.69 × 83,398.50
4. Step 4: Simplify right side
   272,943.33x = 34,150,743,742.84
5. Step 5: Solve for x
   x = 34,150,743,742.84/272,943.33
6. Step 6: Final answer
   x = 125,120.27