Finding the Fourth Proportional to 22,081.32, 33,146.56 and 10,985

Step by Step Solution

1. Step 1: Write the proportion equation
   22,081.32 : 33,146.56 = 10,985 : x
2. Step 2: Convert to fraction form
   22,081.32/33,146.56 = 10,985/x
3. Step 3: Cross multiply
   22,081.32x = 33,146.56 × 10,985
4. Step 4: Simplify right side
   22,081.32x = 364,114,961.60
5. Step 5: Solve for x
   x = 364,114,961.60/22,081.32
6. Step 6: Final answer
   x = 16,489.73