Finding the Fourth Proportional to 10,419.71, 15,631.34 and 3,845.93

Step by Step Solution

1. Step 1: Write the proportion equation
   10,419.71 : 15,631.34 = 3,845.93 : x
2. Step 2: Convert to fraction form
   10,419.71/15,631.34 = 3,845.93/x
3. Step 3: Cross multiply
   10,419.71x = 15,631.34 × 3,845.93
4. Step 4: Simplify right side
   10,419.71x = 60,116,942.06
5. Step 5: Solve for x
   x = 60,116,942.06/10,419.71
6. Step 6: Final answer
   x = 5,769.54