Finding the Fourth Proportional to 72,031.75, 99,404.72 and 41,818.35

Step by Step Solution

1. Step 1: Write the proportion equation
   72,031.75 : 99,404.72 = 41,818.35 : x
2. Step 2: Convert to fraction form
   72,031.75/99,404.72 = 41,818.35/x
3. Step 3: Cross multiply
   72,031.75x = 99,404.72 × 41,818.35
4. Step 4: Simplify right side
   72,031.75x = 4,156,941,372.61
5. Step 5: Solve for x
   x = 4,156,941,372.61/72,031.75
6. Step 6: Final answer
   x = 57,709.85