Finding the Fourth Proportional to 238,258.38, 357,436.17 and 80,483.34

Step by Step Solution

1. Step 1: Write the proportion equation
   238,258.38 : 357,436.17 = 80,483.34 : x
2. Step 2: Convert to fraction form
   238,258.38/357,436.17 = 80,483.34/x
3. Step 3: Cross multiply
   238,258.38x = 357,436.17 × 80,483.34
4. Step 4: Simplify right side
   238,258.38x = 28,767,656,798.41
5. Step 5: Solve for x
   x = 28,767,656,798.41/238,258.38
6. Step 6: Final answer
   x = 120,741.43