Finding the Fourth Proportional to 261,836.15, 361,311.71 and 147,105.81

Step by Step Solution

1. Step 1: Write the proportion equation
   261,836.15 : 361,311.71 = 147,105.81 : x
2. Step 2: Convert to fraction form
   261,836.15/361,311.71 = 147,105.81/x
3. Step 3: Cross multiply
   261,836.15x = 361,311.71 × 147,105.81
4. Step 4: Simplify right side
   261,836.15x = 53,151,051,026.51
5. Step 5: Solve for x
   x = 53,151,051,026.51/261,836.15
6. Step 6: Final answer
   x = 202,993.56