Finding the Fourth Proportional to 190,123.86, 262,429.32 and 109,605.18

Step by Step Solution

1. Step 1: Write the proportion equation
   190,123.86 : 262,429.32 = 109,605.18 : x
2. Step 2: Convert to fraction form
   190,123.86/262,429.32 = 109,605.18/x
3. Step 3: Cross multiply
   190,123.86x = 262,429.32 × 109,605.18
4. Step 4: Simplify right side
   190,123.86x = 28,763,612,855.88
5. Step 5: Solve for x
   x = 28,763,612,855.88/190,123.86
6. Step 6: Final answer
   x = 151,288.81