Finding the Fourth Proportional to 21,799.55, 32,705.87 and 9,320.69

Step by Step Solution

1. Step 1: Write the proportion equation
   21,799.55 : 32,705.87 = 9,320.69 : x
2. Step 2: Convert to fraction form
   21,799.55/32,705.87 = 9,320.69/x
3. Step 3: Cross multiply
   21,799.55x = 32,705.87 × 9,320.69
4. Step 4: Simplify right side
   21,799.55x = 304,841,065.32
5. Step 5: Solve for x
   x = 304,841,065.32/21,799.55
6. Step 6: Final answer
   x = 13,983.83