Finding the Fourth Proportional to 166,582.59, 229,887.50 and 91,131.09

Step by Step Solution

1. Step 1: Write the proportion equation
   166,582.59 : 229,887.50 = 91,131.09 : x
2. Step 2: Convert to fraction form
   166,582.59/229,887.50 = 91,131.09/x
3. Step 3: Cross multiply
   166,582.59x = 229,887.50 × 91,131.09
4. Step 4: Simplify right side
   166,582.59x = 20,949,897,996.72
5. Step 5: Solve for x
   x = 20,949,897,996.72/166,582.59
6. Step 6: Final answer
   x = 125,762.83