Finding the Fourth Proportional to 13,773.42, 19,007.45 and 7,485.81

Step by Step Solution

1. Step 1: Write the proportion equation
   13,773.42 : 19,007.45 = 7,485.81 : x
2. Step 2: Convert to fraction form
   13,773.42/19,007.45 = 7,485.81/x
3. Step 3: Cross multiply
   13,773.42x = 19,007.45 × 7,485.81
4. Step 4: Simplify right side
   13,773.42x = 142,286,121.86
5. Step 5: Solve for x
   x = 142,286,121.86/13,773.42
6. Step 6: Final answer
   x = 10,330.49