Finding the Fourth Proportional to 59,972.42, 89,818.74 and 47,408.12

Step by Step Solution

1. Step 1: Write the proportion equation
   59,972.42 : 89,818.74 = 47,408.12 : x
2. Step 2: Convert to fraction form
   59,972.42/89,818.74 = 47,408.12/x
3. Step 3: Cross multiply
   59,972.42x = 89,818.74 × 47,408.12
4. Step 4: Simplify right side
   59,972.42x = 4,258,137,604.17
5. Step 5: Solve for x
   x = 4,258,137,604.17/59,972.42
6. Step 6: Final answer
   x = 71,001.60