Finding the Fourth Proportional to 178,100.36, 267,078.74 and 64,215.72

Step by Step Solution

1. Step 1: Write the proportion equation
   178,100.36 : 267,078.74 = 64,215.72 : x
2. Step 2: Convert to fraction form
   178,100.36/267,078.74 = 64,215.72/x
3. Step 3: Cross multiply
   178,100.36x = 267,078.74 × 64,215.72
4. Step 4: Simplify right side
   178,100.36x = 17,150,653,585.79
5. Step 5: Solve for x
   x = 17,150,653,585.79/178,100.36
6. Step 6: Final answer
   x = 96,297.69