Finding the Fourth Proportional to 10,854.56, 16,256.52 and 7,925.60

Step by Step Solution

1. Step 1: Write the proportion equation
   10,854.56 : 16,256.52 = 7,925.60 : x
2. Step 2: Convert to fraction form
   10,854.56/16,256.52 = 7,925.60/x
3. Step 3: Cross multiply
   10,854.56x = 16,256.52 × 7,925.60
4. Step 4: Simplify right side
   10,854.56x = 128,842,674.91
5. Step 5: Solve for x
   x = 128,842,674.91/10,854.56
6. Step 6: Final answer
   x = 11,869.91