Finding the Fourth Proportional to 693,147.43, 957,858.72 and 500,188.42

Step by Step Solution

1. Step 1: Write the proportion equation
   693,147.43 : 957,858.72 = 500,188.42 : x
2. Step 2: Convert to fraction form
   693,147.43/957,858.72 = 500,188.42/x
3. Step 3: Cross multiply
   693,147.43x = 957,858.72 × 500,188.42
4. Step 4: Simplify right side
   693,147.43x = 479,109,839,740.02
5. Step 5: Solve for x
   x = 479,109,839,740.02/693,147.43
6. Step 6: Final answer
   x = 691,209.14