Finding the Fourth Proportional to 9,781.52, 14,663.60 and 5,091.68

Step by Step Solution

1. Step 1: Write the proportion equation
   9,781.52 : 14,663.60 = 5,091.68 : x
2. Step 2: Convert to fraction form
   9,781.52/14,663.60 = 5,091.68/x
3. Step 3: Cross multiply
   9,781.52x = 14,663.60 × 5,091.68
4. Step 4: Simplify right side
   9,781.52x = 74,662,358.85
5. Step 5: Solve for x
   x = 74,662,358.85/9,781.52
6. Step 6: Final answer
   x = 7,633.00