Finding the Fourth Proportional to 21,575.50, 32,316.51 and 10,458.94

Step by Step Solution

1. Step 1: Write the proportion equation
   21,575.50 : 32,316.51 = 10,458.94 : x
2. Step 2: Convert to fraction form
   21,575.50/32,316.51 = 10,458.94/x
3. Step 3: Cross multiply
   21,575.50x = 32,316.51 × 10,458.94
4. Step 4: Simplify right side
   21,575.50x = 337,996,439.10
5. Step 5: Solve for x
   x = 337,996,439.10/21,575.50
6. Step 6: Final answer
   x = 15,665.75