Finding the Fourth Proportional to 10,516.91, 15,770.76 and 3,938.48

Step by Step Solution

1. Step 1: Write the proportion equation
   10,516.91 : 15,770.76 = 3,938.48 : x
2. Step 2: Convert to fraction form
   10,516.91/15,770.76 = 3,938.48/x
3. Step 3: Cross multiply
   10,516.91x = 15,770.76 × 3,938.48
4. Step 4: Simplify right side
   10,516.91x = 62,112,802.22
5. Step 5: Solve for x
   x = 62,112,802.22/10,516.91
6. Step 6: Final answer
   x = 5,906.00