Finding the Fourth Proportional to 9,781.89, 14,665.54 and 5,885.39

Step by Step Solution

1. Step 1: Write the proportion equation
   9,781.89 : 14,665.54 = 5,885.39 : x
2. Step 2: Convert to fraction form
   9,781.89/14,665.54 = 5,885.39/x
3. Step 3: Cross multiply
   9,781.89x = 14,665.54 × 5,885.39
4. Step 4: Simplify right side
   9,781.89x = 86,312,422.46
5. Step 5: Solve for x
   x = 86,312,422.46/9,781.89
6. Step 6: Final answer
   x = 8,823.70