Finding the Fourth Proportional to 14,123.04, 21,161.52 and 7,188

Step by Step Solution

1. Step 1: Write the proportion equation
   14,123.04 : 21,161.52 = 7,188 : x
2. Step 2: Convert to fraction form
   14,123.04/21,161.52 = 7,188/x
3. Step 3: Cross multiply
   14,123.04x = 21,161.52 × 7,188
4. Step 4: Simplify right side
   14,123.04x = 152,109,005.76
5. Step 5: Solve for x
   x = 152,109,005.76/14,123.04
6. Step 6: Final answer
   x = 10,770.27