Finding the Fourth Proportional to 23,602.07, 32,569.94 and 12,991.47

Step by Step Solution

1. Step 1: Write the proportion equation
   23,602.07 : 32,569.94 = 12,991.47 : x
2. Step 2: Convert to fraction form
   23,602.07/32,569.94 = 12,991.47/x
3. Step 3: Cross multiply
   23,602.07x = 32,569.94 × 12,991.47
4. Step 4: Simplify right side
   23,602.07x = 423,131,333.45
5. Step 5: Solve for x
   x = 423,131,333.45/23,602.07
6. Step 6: Final answer
   x = 17,927.73