Finding the Fourth Proportional to 9,139.07, 13,705.82 and 3,873.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,139.07 : 13,705.82 = 3,873.98 : x
2. Step 2: Convert to fraction form
   9,139.07/13,705.82 = 3,873.98/x
3. Step 3: Cross multiply
   9,139.07x = 13,705.82 × 3,873.98
4. Step 4: Simplify right side
   9,139.07x = 53,096,127.68
5. Step 5: Solve for x
   x = 53,096,127.68/9,139.07
6. Step 6: Final answer
   x = 5,809.79