Finding the Fourth Proportional to 9,913.32, 14,861.16 and 3,761.64

Step by Step Solution

1. Step 1: Write the proportion equation
   9,913.32 : 14,861.16 = 3,761.64 : x
2. Step 2: Convert to fraction form
   9,913.32/14,861.16 = 3,761.64/x
3. Step 3: Cross multiply
   9,913.32x = 14,861.16 × 3,761.64
4. Step 4: Simplify right side
   9,913.32x = 55,902,333.90
5. Step 5: Solve for x
   x = 55,902,333.90/9,913.32
6. Step 6: Final answer
   x = 5,639.11