Finding the Fourth Proportional to 23,602.82, 32,570.64 and 12,990.41

Step by Step Solution

1. Step 1: Write the proportion equation
   23,602.82 : 32,570.64 = 12,990.41 : x
2. Step 2: Convert to fraction form
   23,602.82/32,570.64 = 12,990.41/x
3. Step 3: Cross multiply
   23,602.82x = 32,570.64 × 12,990.41
4. Step 4: Simplify right side
   23,602.82x = 423,105,967.56
5. Step 5: Solve for x
   x = 423,105,967.56/23,602.82
6. Step 6: Final answer
   x = 17,926.08