Finding the Fourth Proportional to 62,485.89, 86,198.34 and 42,335.92

Step by Step Solution

1. Step 1: Write the proportion equation
   62,485.89 : 86,198.34 = 42,335.92 : x
2. Step 2: Convert to fraction form
   62,485.89/86,198.34 = 42,335.92/x
3. Step 3: Cross multiply
   62,485.89x = 86,198.34 × 42,335.92
4. Step 4: Simplify right side
   62,485.89x = 3,649,286,026.37
5. Step 5: Solve for x
   x = 3,649,286,026.37/62,485.89
6. Step 6: Final answer
   x = 58,401.76