Finding the Fourth Proportional to 23,056.06, 31,819.06 and 12,985.60

Step by Step Solution

1. Step 1: Write the proportion equation
   23,056.06 : 31,819.06 = 12,985.60 : x
2. Step 2: Convert to fraction form
   23,056.06/31,819.06 = 12,985.60/x
3. Step 3: Cross multiply
   23,056.06x = 31,819.06 × 12,985.60
4. Step 4: Simplify right side
   23,056.06x = 413,189,585.54
5. Step 5: Solve for x
   x = 413,189,585.54/23,056.06
6. Step 6: Final answer
   x = 17,921.08