Finding the Fourth Proportional to 48,780.42, 67,274.85 and 31,778.25

Step by Step Solution

1. Step 1: Write the proportion equation
   48,780.42 : 67,274.85 = 31,778.25 : x
2. Step 2: Convert to fraction form
   48,780.42/67,274.85 = 31,778.25/x
3. Step 3: Cross multiply
   48,780.42x = 67,274.85 × 31,778.25
4. Step 4: Simplify right side
   48,780.42x = 2,137,877,002.01
5. Step 5: Solve for x
   x = 2,137,877,002.01/48,780.42
6. Step 6: Final answer
   x = 43,826.54