Finding the Fourth Proportional to 321,123.81, 443,150.86 and 177,893.13

Step by Step Solution

1. Step 1: Write the proportion equation
   321,123.81 : 443,150.86 = 177,893.13 : x
2. Step 2: Convert to fraction form
   321,123.81/443,150.86 = 177,893.13/x
3. Step 3: Cross multiply
   321,123.81x = 443,150.86 × 177,893.13
4. Step 4: Simplify right side
   321,123.81x = 78,833,493,547.59
5. Step 5: Solve for x
   x = 78,833,493,547.59/321,123.81
6. Step 6: Final answer
   x = 245,492.52