Finding the Fourth Proportional to 146,448, 202,098.38 and 79,380

Step by Step Solution

1. Step 1: Write the proportion equation
   146,448 : 202,098.38 = 79,380 : x
2. Step 2: Convert to fraction form
   146,448/202,098.38 = 79,380/x
3. Step 3: Cross multiply
   146,448x = 202,098.38 × 79,380
4. Step 4: Simplify right side
   146,448x = 16,042,569,007.50
5. Step 5: Solve for x
   x = 16,042,569,007.50/146,448
6. Step 6: Final answer
   x = 109,544.47