Finding the Fourth Proportional to 166,807.08, 230,196.06 and 91,356.12

Step by Step Solution

1. Step 1: Write the proportion equation
   166,807.08 : 230,196.06 = 91,356.12 : x
2. Step 2: Convert to fraction form
   166,807.08/230,196.06 = 91,356.12/x
3. Step 3: Cross multiply
   166,807.08x = 230,196.06 × 91,356.12
4. Step 4: Simplify right side
   166,807.08x = 21,029,818,880.89
5. Step 5: Solve for x
   x = 21,029,818,880.89/166,807.08
6. Step 6: Final answer
   x = 126,072.70