Finding the Fourth Proportional to 190,123.05, 262,435.85 and 117,581.47

Step by Step Solution

1. Step 1: Write the proportion equation
   190,123.05 : 262,435.85 = 117,581.47 : x
2. Step 2: Convert to fraction form
   190,123.05/262,435.85 = 117,581.47/x
3. Step 3: Cross multiply
   190,123.05x = 262,435.85 × 117,581.47
4. Step 4: Simplify right side
   190,123.05x = 30,857,593,696.83
5. Step 5: Solve for x
   x = 30,857,593,696.83/190,123.05
6. Step 6: Final answer
   x = 162,303.28