Finding the Fourth Proportional to 48,820.61, 67,372.71 and 28,414.77

Step by Step Solution

1. Step 1: Write the proportion equation
   48,820.61 : 67,372.71 = 28,414.77 : x
2. Step 2: Convert to fraction form
   48,820.61/67,372.71 = 28,414.77/x
3. Step 3: Cross multiply
   48,820.61x = 67,372.71 × 28,414.77
4. Step 4: Simplify right side
   48,820.61x = 1,914,379,952.37
5. Step 5: Solve for x
   x = 1,914,379,952.37/48,820.61
6. Step 6: Final answer
   x = 39,212.53