Finding the Fourth Proportional to 13,092.23, 18,066.72 and 7,123.55

Step by Step Solution

1. Step 1: Write the proportion equation
   13,092.23 : 18,066.72 = 7,123.55 : x
2. Step 2: Convert to fraction form
   13,092.23/18,066.72 = 7,123.55/x
3. Step 3: Cross multiply
   13,092.23x = 18,066.72 × 7,123.55
4. Step 4: Simplify right side
   13,092.23x = 128,699,092.92
5. Step 5: Solve for x
   x = 128,699,092.92/13,092.23
6. Step 6: Final answer
   x = 9,830.19