Finding the Fourth Proportional to 9,003.87, 13,505.73 and 3,159.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,003.87 : 13,505.73 = 3,159.12 : x
2. Step 2: Convert to fraction form
   9,003.87/13,505.73 = 3,159.12/x
3. Step 3: Cross multiply
   9,003.87x = 13,505.73 × 3,159.12
4. Step 4: Simplify right side
   9,003.87x = 42,666,221.76
5. Step 5: Solve for x
   x = 42,666,221.76/9,003.87
6. Step 6: Final answer
   x = 4,738.65