Finding the Fourth Proportional to 7,345.89, 10,137.15 and 4,201.89

Step by Step Solution

1. Step 1: Write the proportion equation
   7,345.89 : 10,137.15 = 4,201.89 : x
2. Step 2: Convert to fraction form
   7,345.89/10,137.15 = 4,201.89/x
3. Step 3: Cross multiply
   7,345.89x = 10,137.15 × 4,201.89
4. Step 4: Simplify right side
   7,345.89x = 42,595,189.21
5. Step 5: Solve for x
   x = 42,595,189.21/7,345.89
6. Step 6: Final answer
   x = 5,798.51