Finding the Fourth Proportional to 58,123.86, 80,235.28 and 49,217.46

Step by Step Solution

1. Step 1: Write the proportion equation
   58,123.86 : 80,235.28 = 49,217.46 : x
2. Step 2: Convert to fraction form
   58,123.86/80,235.28 = 49,217.46/x
3. Step 3: Cross multiply
   58,123.86x = 80,235.28 × 49,217.46
4. Step 4: Simplify right side
   58,123.86x = 3,948,976,683.99
5. Step 5: Solve for x
   x = 3,948,976,683.99/58,123.86
6. Step 6: Final answer
   x = 67,940.72