Finding the Fourth Proportional to 7,390.18, 10,199.72 and 7,058.02

Step by Step Solution

1. Step 1: Write the proportion equation
   7,390.18 : 10,199.72 = 7,058.02 : x
2. Step 2: Convert to fraction form
   7,390.18/10,199.72 = 7,058.02/x
3. Step 3: Cross multiply
   7,390.18x = 10,199.72 × 7,058.02
4. Step 4: Simplify right side
   7,390.18x = 71,989,827.75
5. Step 5: Solve for x
   x = 71,989,827.75/7,390.18
6. Step 6: Final answer
   x = 9,741.28