Finding the Fourth Proportional to 314,871.72, 472,268.70 and 137,501.16

Step by Step Solution

1. Step 1: Write the proportion equation
   314,871.72 : 472,268.70 = 137,501.16 : x
2. Step 2: Convert to fraction form
   314,871.72/472,268.70 = 137,501.16/x
3. Step 3: Cross multiply
   314,871.72x = 472,268.70 × 137,501.16
4. Step 4: Simplify right side
   314,871.72x = 64,937,494,081.69
5. Step 5: Solve for x
   x = 64,937,494,081.69/314,871.72
6. Step 6: Final answer
   x = 206,234.76