Finding the Fourth Proportional to 598,836, 898,263.72 and 172,377.48

Step by Step Solution

1. Step 1: Write the proportion equation
   598,836 : 898,263.72 = 172,377.48 : x
2. Step 2: Convert to fraction form
   598,836/898,263.72 = 172,377.48/x
3. Step 3: Cross multiply
   598,836x = 898,263.72 × 172,377.48
4. Step 4: Simplify right side
   598,836x = 154,840,436,429.03
5. Step 5: Solve for x
   x = 154,840,436,429.03/598,836
6. Step 6: Final answer
   x = 258,569.02