Finding the Fourth Proportional to 12,432.39, 17,123.40 and 10,753.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,432.39 : 17,123.40 = 10,753.86 : x
2. Step 2: Convert to fraction form
   12,432.39/17,123.40 = 10,753.86/x
3. Step 3: Cross multiply
   12,432.39x = 17,123.40 × 10,753.86
4. Step 4: Simplify right side
   12,432.39x = 184,142,710.54
5. Step 5: Solve for x
   x = 184,142,710.54/12,432.39
6. Step 6: Final answer
   x = 14,811.53