Finding the Fourth Proportional to 7,321.98, 10,102.59 and 4,135.34

Step by Step Solution

1. Step 1: Write the proportion equation
   7,321.98 : 10,102.59 = 4,135.34 : x
2. Step 2: Convert to fraction form
   7,321.98/10,102.59 = 4,135.34/x
3. Step 3: Cross multiply
   7,321.98x = 10,102.59 × 4,135.34
4. Step 4: Simplify right side
   7,321.98x = 41,777,644.53
5. Step 5: Solve for x
   x = 41,777,644.53/7,321.98
6. Step 6: Final answer
   x = 5,705.79