Finding the Fourth Proportional to 21,904.94, 32,860.38 and 7,109.08

Step by Step Solution

1. Step 1: Write the proportion equation
   21,904.94 : 32,860.38 = 7,109.08 : x
2. Step 2: Convert to fraction form
   21,904.94/32,860.38 = 7,109.08/x
3. Step 3: Cross multiply
   21,904.94x = 32,860.38 × 7,109.08
4. Step 4: Simplify right side
   21,904.94x = 233,607,070.25
5. Step 5: Solve for x
   x = 233,607,070.25/21,904.94
6. Step 6: Final answer
   x = 10,664.58