Finding the Fourth Proportional to 71,286.89, 98,369.17 and 42,600.84

Step by Step Solution

1. Step 1: Write the proportion equation
   71,286.89 : 98,369.17 = 42,600.84 : x
2. Step 2: Convert to fraction form
   71,286.89/98,369.17 = 42,600.84/x
3. Step 3: Cross multiply
   71,286.89x = 98,369.17 × 42,600.84
4. Step 4: Simplify right side
   71,286.89x = 4,190,608,796.72
5. Step 5: Solve for x
   x = 4,190,608,796.72/71,286.89
6. Step 6: Final answer
   x = 58,785.13