Finding the Fourth Proportional to 52,957.39, 79,468.89 and 30,781.21

Step by Step Solution

1. Step 1: Write the proportion equation
   52,957.39 : 79,468.89 = 30,781.21 : x
2. Step 2: Convert to fraction form
   52,957.39/79,468.89 = 30,781.21/x
3. Step 3: Cross multiply
   52,957.39x = 79,468.89 × 30,781.21
4. Step 4: Simplify right side
   52,957.39x = 2,446,148,591.56
5. Step 5: Solve for x
   x = 2,446,148,591.56/52,957.39
6. Step 6: Final answer
   x = 46,190.88