Finding the Fourth Proportional to 11,881.54, 17,810.55 and 5,630.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,881.54 : 17,810.55 = 5,630.50 : x
2. Step 2: Convert to fraction form
   11,881.54/17,810.55 = 5,630.50/x
3. Step 3: Cross multiply
   11,881.54x = 17,810.55 × 5,630.50
4. Step 4: Simplify right side
   11,881.54x = 100,282,301.78
5. Step 5: Solve for x
   x = 100,282,301.78/11,881.54
6. Step 6: Final answer
   x = 8,440.18