Finding the Fourth Proportional to 11,705.60, 16,162.18 and 7,235.48

Step by Step Solution

1. Step 1: Write the proportion equation
   11,705.60 : 16,162.18 = 7,235.48 : x
2. Step 2: Convert to fraction form
   11,705.60/16,162.18 = 7,235.48/x
3. Step 3: Cross multiply
   11,705.60x = 16,162.18 × 7,235.48
4. Step 4: Simplify right side
   11,705.60x = 116,941,130.15
5. Step 5: Solve for x
   x = 116,941,130.15/11,705.60
6. Step 6: Final answer
   x = 9,990.19