Finding the Fourth Proportional to 9,881.31, 13,636.18 and 5,632.19

Step by Step Solution

1. Step 1: Write the proportion equation
   9,881.31 : 13,636.18 = 5,632.19 : x
2. Step 2: Convert to fraction form
   9,881.31/13,636.18 = 5,632.19/x
3. Step 3: Cross multiply
   9,881.31x = 13,636.18 × 5,632.19
4. Step 4: Simplify right side
   9,881.31x = 76,801,556.63
5. Step 5: Solve for x
   x = 76,801,556.63/9,881.31
6. Step 6: Final answer
   x = 7,772.41