Finding the Fourth Proportional to 21,951.82, 32,930.90 and 7,157.08

Step by Step Solution

1. Step 1: Write the proportion equation
   21,951.82 : 32,930.90 = 7,157.08 : x
2. Step 2: Convert to fraction form
   21,951.82/32,930.90 = 7,157.08/x
3. Step 3: Cross multiply
   21,951.82x = 32,930.90 × 7,157.08
4. Step 4: Simplify right side
   21,951.82x = 235,689,085.77
5. Step 5: Solve for x
   x = 235,689,085.77/21,951.82
6. Step 6: Final answer
   x = 10,736.65