Finding the Fourth Proportional to 57,488.85, 85,725.59 and 50,497.47

Step by Step Solution

1. Step 1: Write the proportion equation
   57,488.85 : 85,725.59 = 50,497.47 : x
2. Step 2: Convert to fraction form
   57,488.85/85,725.59 = 50,497.47/x
3. Step 3: Cross multiply
   57,488.85x = 85,725.59 × 50,497.47
4. Step 4: Simplify right side
   57,488.85x = 4,328,925,156.77
5. Step 5: Solve for x
   x = 4,328,925,156.77/57,488.85
6. Step 6: Final answer
   x = 75,300.26