Finding the Fourth Proportional to 166,848.79, 230,251.61 and 90,368.05

Step by Step Solution

1. Step 1: Write the proportion equation
   166,848.79 : 230,251.61 = 90,368.05 : x
2. Step 2: Convert to fraction form
   166,848.79/230,251.61 = 90,368.05/x
3. Step 3: Cross multiply
   166,848.79x = 230,251.61 × 90,368.05
4. Step 4: Simplify right side
   166,848.79x = 20,807,387,401.96
5. Step 5: Solve for x
   x = 20,807,387,401.96/166,848.79
6. Step 6: Final answer
   x = 124,708.05