Finding the Fourth Proportional to 11,128.58, 16,565.74 and 10,962.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,128.58 : 16,565.74 = 10,962.50 : x
2. Step 2: Convert to fraction form
   11,128.58/16,565.74 = 10,962.50/x
3. Step 3: Cross multiply
   11,128.58x = 16,565.74 × 10,962.50
4. Step 4: Simplify right side
   11,128.58x = 181,601,924.75
5. Step 5: Solve for x
   x = 181,601,924.75/11,128.58
6. Step 6: Final answer
   x = 16,318.52