Finding the Fourth Proportional to 9,938.05, 14,901.40 and 4,087.69

Step by Step Solution

1. Step 1: Write the proportion equation
   9,938.05 : 14,901.40 = 4,087.69 : x
2. Step 2: Convert to fraction form
   9,938.05/14,901.40 = 4,087.69/x
3. Step 3: Cross multiply
   9,938.05x = 14,901.40 × 4,087.69
4. Step 4: Simplify right side
   9,938.05x = 60,912,303.77
5. Step 5: Solve for x
   x = 60,912,303.77/9,938.05
6. Step 6: Final answer
   x = 6,129.20