Finding the Fourth Proportional to 9,911.03, 14,875.79 and 5,234.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,911.03 : 14,875.79 = 5,234.50 : x
2. Step 2: Convert to fraction form
   9,911.03/14,875.79 = 5,234.50/x
3. Step 3: Cross multiply
   9,911.03x = 14,875.79 × 5,234.50
4. Step 4: Simplify right side
   9,911.03x = 77,867,322.76
5. Step 5: Solve for x
   x = 77,867,322.76/9,911.03
6. Step 6: Final answer
   x = 7,856.63