Finding the Fourth Proportional to 178,321.41, 267,815.34 and 156,981.78

Step by Step Solution

1. Step 1: Write the proportion equation
   178,321.41 : 267,815.34 = 156,981.78 : x
2. Step 2: Convert to fraction form
   178,321.41/267,815.34 = 156,981.78/x
3. Step 3: Cross multiply
   178,321.41x = 267,815.34 × 156,981.78
4. Step 4: Simplify right side
   178,321.41x = 42,042,128,784.51
5. Step 5: Solve for x
   x = 42,042,128,784.51/178,321.41
6. Step 6: Final answer
   x = 235,766.02