Finding the Fourth Proportional to 167,850.72, 231,604.56 and 100,784.16

Step by Step Solution

1. Step 1: Write the proportion equation
   167,850.72 : 231,604.56 = 100,784.16 : x
2. Step 2: Convert to fraction form
   167,850.72/231,604.56 = 100,784.16/x
3. Step 3: Cross multiply
   167,850.72x = 231,604.56 × 100,784.16
4. Step 4: Simplify right side
   167,850.72x = 23,342,071,031.77
5. Step 5: Solve for x
   x = 23,342,071,031.77/167,850.72
6. Step 6: Final answer
   x = 139,064.47