Finding the Fourth Proportional to 202,929.20, 279,871.56 and 152,061.20

Step by Step Solution

1. Step 1: Write the proportion equation
   202,929.20 : 279,871.56 = 152,061.20 : x
2. Step 2: Convert to fraction form
   202,929.20/279,871.56 = 152,061.20/x
3. Step 3: Cross multiply
   202,929.20x = 279,871.56 × 152,061.20
4. Step 4: Simplify right side
   202,929.20x = 42,557,605,259.47
5. Step 5: Solve for x
   x = 42,557,605,259.47/202,929.20
6. Step 6: Final answer
   x = 209,716.52