Finding the Fourth Proportional to 133,114.86, 199,499.94 and 54,137.34

Step by Step Solution

1. Step 1: Write the proportion equation
   133,114.86 : 199,499.94 = 54,137.34 : x
2. Step 2: Convert to fraction form
   133,114.86/199,499.94 = 54,137.34/x
3. Step 3: Cross multiply
   133,114.86x = 199,499.94 × 54,137.34
4. Step 4: Simplify right side
   133,114.86x = 10,800,396,081.76
5. Step 5: Solve for x
   x = 10,800,396,081.76/133,114.86
6. Step 6: Final answer
   x = 81,135.92