Finding the Fourth Proportional to 231,053.30, 346,061.55 and 225,869.30

Step by Step Solution

1. Step 1: Write the proportion equation
   231,053.30 : 346,061.55 = 225,869.30 : x
2. Step 2: Convert to fraction form
   231,053.30/346,061.55 = 225,869.30/x
3. Step 3: Cross multiply
   231,053.30x = 346,061.55 × 225,869.30
4. Step 4: Simplify right side
   231,053.30x = 78,164,680,055.42
5. Step 5: Solve for x
   x = 78,164,680,055.42/231,053.30
6. Step 6: Final answer
   x = 338,297.18