Finding the Fourth Proportional to 12,320.25, 18,484.96 and 7,393.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,320.25 : 18,484.96 = 7,393.42 : x
2. Step 2: Convert to fraction form
   12,320.25/18,484.96 = 7,393.42/x
3. Step 3: Cross multiply
   12,320.25x = 18,484.96 × 7,393.42
4. Step 4: Simplify right side
   12,320.25x = 136,667,072.96
5. Step 5: Solve for x
   x = 136,667,072.96/12,320.25
6. Step 6: Final answer
   x = 11,092.88