Finding the Fourth Proportional to 21,326.94, 31,994.82 and 7,285.86

Step by Step Solution

1. Step 1: Write the proportion equation
   21,326.94 : 31,994.82 = 7,285.86 : x
2. Step 2: Convert to fraction form
   21,326.94/31,994.82 = 7,285.86/x
3. Step 3: Cross multiply
   21,326.94x = 31,994.82 × 7,285.86
4. Step 4: Simplify right side
   21,326.94x = 233,109,779.25
5. Step 5: Solve for x
   x = 233,109,779.25/21,326.94
6. Step 6: Final answer
   x = 10,930.30