Finding the Fourth Proportional to 309,468.83, 427,066.61 and 173,502.81

Step by Step Solution

1. Step 1: Write the proportion equation
   309,468.83 : 427,066.61 = 173,502.81 : x
2. Step 2: Convert to fraction form
   309,468.83/427,066.61 = 173,502.81/x
3. Step 3: Cross multiply
   309,468.83x = 427,066.61 × 173,502.81
4. Step 4: Simplify right side
   309,468.83x = 74,097,256,024.66
5. Step 5: Solve for x
   x = 74,097,256,024.66/309,468.83
6. Step 6: Final answer
   x = 239,433.67