Finding the Fourth Proportional to 21,385.15, 32,083.01 and 7,345.39

Step by Step Solution

1. Step 1: Write the proportion equation
   21,385.15 : 32,083.01 = 7,345.39 : x
2. Step 2: Convert to fraction form
   21,385.15/32,083.01 = 7,345.39/x
3. Step 3: Cross multiply
   21,385.15x = 32,083.01 × 7,345.39
4. Step 4: Simplify right side
   21,385.15x = 235,662,220.82
5. Step 5: Solve for x
   x = 235,662,220.82/21,385.15
6. Step 6: Final answer
   x = 11,019.90