Finding the Fourth Proportional to 10,667.61, 16,013.12 and 4,432.05

Step by Step Solution

1. Step 1: Write the proportion equation
   10,667.61 : 16,013.12 = 4,432.05 : x
2. Step 2: Convert to fraction form
   10,667.61/16,013.12 = 4,432.05/x
3. Step 3: Cross multiply
   10,667.61x = 16,013.12 × 4,432.05
4. Step 4: Simplify right side
   10,667.61x = 70,970,926.34
5. Step 5: Solve for x
   x = 70,970,926.34/10,667.61
6. Step 6: Final answer
   x = 6,652.94