Finding the Fourth Proportional to 21,876.45, 32,819.85 and 7,085.34

Step by Step Solution

1. Step 1: Write the proportion equation
   21,876.45 : 32,819.85 = 7,085.34 : x
2. Step 2: Convert to fraction form
   21,876.45/32,819.85 = 7,085.34/x
3. Step 3: Cross multiply
   21,876.45x = 32,819.85 × 7,085.34
4. Step 4: Simplify right side
   21,876.45x = 232,539,796.00
5. Step 5: Solve for x
   x = 232,539,796.00/21,876.45
6. Step 6: Final answer
   x = 10,629.69