Finding the Fourth Proportional to 13,978.22, 19,289.73 and 7,604.66

Step by Step Solution

1. Step 1: Write the proportion equation
   13,978.22 : 19,289.73 = 7,604.66 : x
2. Step 2: Convert to fraction form
   13,978.22/19,289.73 = 7,604.66/x
3. Step 3: Cross multiply
   13,978.22x = 19,289.73 × 7,604.66
4. Step 4: Simplify right side
   13,978.22x = 146,691,741.69
5. Step 5: Solve for x
   x = 146,691,741.69/13,978.22
6. Step 6: Final answer
   x = 10,494.31