Finding the Fourth Proportional to 7,909.35, 11,851.72 and 4,981.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,909.35 : 11,851.72 = 4,981.50 : x
2. Step 2: Convert to fraction form
   7,909.35/11,851.72 = 4,981.50/x
3. Step 3: Cross multiply
   7,909.35x = 11,851.72 × 4,981.50
4. Step 4: Simplify right side
   7,909.35x = 59,039,330.73
5. Step 5: Solve for x
   x = 59,039,330.73/7,909.35
6. Step 6: Final answer
   x = 7,464.50