Finding the Fourth Proportional to 13,773.48, 19,007.55 and 7,485.86

Step by Step Solution

1. Step 1: Write the proportion equation
   13,773.48 : 19,007.55 = 7,485.86 : x
2. Step 2: Convert to fraction form
   13,773.48/19,007.55 = 7,485.86/x
3. Step 3: Cross multiply
   13,773.48x = 19,007.55 × 7,485.86
4. Step 4: Simplify right side
   13,773.48x = 142,287,763.21
5. Step 5: Solve for x
   x = 142,287,763.21/13,773.48
6. Step 6: Final answer
   x = 10,330.56