Finding the Fourth Proportional to 202,426.47, 303,436.49 and 69,215.61

Step by Step Solution

1. Step 1: Write the proportion equation
   202,426.47 : 303,436.49 = 69,215.61 : x
2. Step 2: Convert to fraction form
   202,426.47/303,436.49 = 69,215.61/x
3. Step 3: Cross multiply
   202,426.47x = 303,436.49 × 69,215.61
4. Step 4: Simplify right side
   202,426.47x = 21,002,541,751.61
5. Step 5: Solve for x
   x = 21,002,541,751.61/202,426.47
6. Step 6: Final answer
   x = 103,753.93