Finding the Fourth Proportional to 10,430.12, 15,641.94 and 3,503

Step by Step Solution

1. Step 1: Write the proportion equation
   10,430.12 : 15,641.94 = 3,503 : x
2. Step 2: Convert to fraction form
   10,430.12/15,641.94 = 3,503/x
3. Step 3: Cross multiply
   10,430.12x = 15,641.94 × 3,503
4. Step 4: Simplify right side
   10,430.12x = 54,793,715.82
5. Step 5: Solve for x
   x = 54,793,715.82/10,430.12
6. Step 6: Final answer
   x = 5,253.41