Finding the Fourth Proportional to 23,970.63, 35,972.28 and 8,388.12

Step by Step Solution

1. Step 1: Write the proportion equation
   23,970.63 : 35,972.28 = 8,388.12 : x
2. Step 2: Convert to fraction form
   23,970.63/35,972.28 = 8,388.12/x
3. Step 3: Cross multiply
   23,970.63x = 35,972.28 × 8,388.12
4. Step 4: Simplify right side
   23,970.63x = 301,739,801.31
5. Step 5: Solve for x
   x = 301,739,801.31/23,970.63
6. Step 6: Final answer
   x = 12,587.90