Finding the Fourth Proportional to 59,970.42, 89,815.74 and 47,406.12

Step by Step Solution

1. Step 1: Write the proportion equation
   59,970.42 : 89,815.74 = 47,406.12 : x
2. Step 2: Convert to fraction form
   59,970.42/89,815.74 = 47,406.12/x
3. Step 3: Cross multiply
   59,970.42x = 89,815.74 × 47,406.12
4. Step 4: Simplify right side
   59,970.42x = 4,257,815,748.33
5. Step 5: Solve for x
   x = 4,257,815,748.33/59,970.42
6. Step 6: Final answer
   x = 70,998.60