Finding the Fourth Proportional to 85,723.43, 118,300.25 and 48,928.91

Step by Step Solution

1. Step 1: Write the proportion equation
   85,723.43 : 118,300.25 = 48,928.91 : x
2. Step 2: Convert to fraction form
   85,723.43/118,300.25 = 48,928.91/x
3. Step 3: Cross multiply
   85,723.43x = 118,300.25 × 48,928.91
4. Step 4: Simplify right side
   85,723.43x = 5,788,302,703.30
5. Step 5: Solve for x
   x = 5,788,302,703.30/85,723.43
6. Step 6: Final answer
   x = 67,522.99