Finding the Fourth Proportional to 11,723.60, 16,181.46 and 7,953.06

Step by Step Solution

1. Step 1: Write the proportion equation
   11,723.60 : 16,181.46 = 7,953.06 : x
2. Step 2: Convert to fraction form
   11,723.60/16,181.46 = 7,953.06/x
3. Step 3: Cross multiply
   11,723.60x = 16,181.46 × 7,953.06
4. Step 4: Simplify right side
   11,723.60x = 128,692,122.27
5. Step 5: Solve for x
   x = 128,692,122.27/11,723.60
6. Step 6: Final answer
   x = 10,977.18