Finding the Fourth Proportional to 23,055.33, 31,819.40 and 12,985.76

Step by Step Solution

1. Step 1: Write the proportion equation
   23,055.33 : 31,819.40 = 12,985.76 : x
2. Step 2: Convert to fraction form
   23,055.33/31,819.40 = 12,985.76/x
3. Step 3: Cross multiply
   23,055.33x = 31,819.40 × 12,985.76
4. Step 4: Simplify right side
   23,055.33x = 413,199,091.74
5. Step 5: Solve for x
   x = 413,199,091.74/23,055.33
6. Step 6: Final answer
   x = 17,922.06