Finding the Fourth Proportional to 16,774.02, 23,146.78 and 9,700.90

Step by Step Solution

1. Step 1: Write the proportion equation
   16,774.02 : 23,146.78 = 9,700.90 : x
2. Step 2: Convert to fraction form
   16,774.02/23,146.78 = 9,700.90/x
3. Step 3: Cross multiply
   16,774.02x = 23,146.78 × 9,700.90
4. Step 4: Simplify right side
   16,774.02x = 224,544,598.10
5. Step 5: Solve for x
   x = 224,544,598.10/16,774.02
6. Step 6: Final answer
   x = 13,386.45