Finding the Fourth Proportional to 9,887.73, 13,645.06 and 5,411.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,887.73 : 13,645.06 = 5,411.48 : x
2. Step 2: Convert to fraction form
   9,887.73/13,645.06 = 5,411.48/x
3. Step 3: Cross multiply
   9,887.73x = 13,645.06 × 5,411.48
4. Step 4: Simplify right side
   9,887.73x = 73,839,969.29
5. Step 5: Solve for x
   x = 73,839,969.29/9,887.73
6. Step 6: Final answer
   x = 7,467.84