Finding the Fourth Proportional to 21,932.50, 32,901.69 and 7,697.60

Step by Step Solution

1. Step 1: Write the proportion equation
   21,932.50 : 32,901.69 = 7,697.60 : x
2. Step 2: Convert to fraction form
   21,932.50/32,901.69 = 7,697.60/x
3. Step 3: Cross multiply
   21,932.50x = 32,901.69 × 7,697.60
4. Step 4: Simplify right side
   21,932.50x = 253,264,018.00
5. Step 5: Solve for x
   x = 253,264,018.00/21,932.50
6. Step 6: Final answer
   x = 11,547.43