Finding the Fourth Proportional to 60,428.89, 90,636.42 and 16,059.06

Step by Step Solution

1. Step 1: Write the proportion equation
   60,428.89 : 90,636.42 = 16,059.06 : x
2. Step 2: Convert to fraction form
   60,428.89/90,636.42 = 16,059.06/x
3. Step 3: Cross multiply
   60,428.89x = 90,636.42 × 16,059.06
4. Step 4: Simplify right side
   60,428.89x = 1,455,535,676.85
5. Step 5: Solve for x
   x = 1,455,535,676.85/60,428.89
6. Step 6: Final answer
   x = 24,086.75