Finding the Fourth Proportional to 7,419.21, 10,238.42 and 4,061.99

Step by Step Solution

1. Step 1: Write the proportion equation
   7,419.21 : 10,238.42 = 4,061.99 : x
2. Step 2: Convert to fraction form
   7,419.21/10,238.42 = 4,061.99/x
3. Step 3: Cross multiply
   7,419.21x = 10,238.42 × 4,061.99
4. Step 4: Simplify right side
   7,419.21x = 41,588,364.94
5. Step 5: Solve for x
   x = 41,588,364.94/7,419.21
6. Step 6: Final answer
   x = 5,605.50