Finding the Fourth Proportional to 210,460, 315,744.72 and 62,716

Step by Step Solution

1. Step 1: Write the proportion equation
   210,460 : 315,744.72 = 62,716 : x
2. Step 2: Convert to fraction form
   210,460/315,744.72 = 62,716/x
3. Step 3: Cross multiply
   210,460x = 315,744.72 × 62,716
4. Step 4: Simplify right side
   210,460x = 19,802,245,859.52
5. Step 5: Solve for x
   x = 19,802,245,859.52/210,460
6. Step 6: Final answer
   x = 94,090.31