Finding the Fourth Proportional to 7,019.53, 9,686.59 and 3,875.11

Step by Step Solution

1. Step 1: Write the proportion equation
   7,019.53 : 9,686.59 = 3,875.11 : x
2. Step 2: Convert to fraction form
   7,019.53/9,686.59 = 3,875.11/x
3. Step 3: Cross multiply
   7,019.53x = 9,686.59 × 3,875.11
4. Step 4: Simplify right side
   7,019.53x = 37,536,601.77
5. Step 5: Solve for x
   x = 37,536,601.77/7,019.53
6. Step 6: Final answer
   x = 5,347.45