Finding the Fourth Proportional to 72,890.28, 100,590.30 and 41,058.72

Step by Step Solution

1. Step 1: Write the proportion equation
   72,890.28 : 100,590.30 = 41,058.72 : x
2. Step 2: Convert to fraction form
   72,890.28/100,590.30 = 41,058.72/x
3. Step 3: Cross multiply
   72,890.28x = 100,590.30 × 41,058.72
4. Step 4: Simplify right side
   72,890.28x = 4,130,108,962.42
5. Step 5: Solve for x
   x = 4,130,108,962.42/72,890.28
6. Step 6: Final answer
   x = 56,662.00