Finding the Fourth Proportional to 72,891.90, 100,587.42 and 49,014.72

Step by Step Solution

1. Step 1: Write the proportion equation
   72,891.90 : 100,587.42 = 49,014.72 : x
2. Step 2: Convert to fraction form
   72,891.90/100,587.42 = 49,014.72/x
3. Step 3: Cross multiply
   72,891.90x = 100,587.42 × 49,014.72
4. Step 4: Simplify right side
   72,891.90x = 4,930,264,226.82
5. Step 5: Solve for x
   x = 4,930,264,226.82/72,891.90
6. Step 6: Final answer
   x = 67,638.03