Finding the Fourth Proportional to 10,618.51, 15,930.15 and 3,598.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,618.51 : 15,930.15 = 3,598.12 : x
2. Step 2: Convert to fraction form
   10,618.51/15,930.15 = 3,598.12/x
3. Step 3: Cross multiply
   10,618.51x = 15,930.15 × 3,598.12
4. Step 4: Simplify right side
   10,618.51x = 57,318,591.32
5. Step 5: Solve for x
   x = 57,318,591.32/10,618.51
6. Step 6: Final answer
   x = 5,397.99