Finding the Fourth Proportional to 9,179.60, 12,667.44 and 5,201.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,179.60 : 12,667.44 = 5,201.12 : x
2. Step 2: Convert to fraction form
   9,179.60/12,667.44 = 5,201.12/x
3. Step 3: Cross multiply
   9,179.60x = 12,667.44 × 5,201.12
4. Step 4: Simplify right side
   9,179.60x = 65,884,875.53
5. Step 5: Solve for x
   x = 65,884,875.53/9,179.60
6. Step 6: Final answer
   x = 7,177.31