Finding the Fourth Proportional to 7,360.88, 10,158.01 and 4,218.89

Step by Step Solution

1. Step 1: Write the proportion equation
   7,360.88 : 10,158.01 = 4,218.89 : x
2. Step 2: Convert to fraction form
   7,360.88/10,158.01 = 4,218.89/x
3. Step 3: Cross multiply
   7,360.88x = 10,158.01 × 4,218.89
4. Step 4: Simplify right side
   7,360.88x = 42,855,465.47
5. Step 5: Solve for x
   x = 42,855,465.47/7,360.88
6. Step 6: Final answer
   x = 5,822.06