Finding the Fourth Proportional to 23,081.13, 31,848.03 and 12,869.91

Step by Step Solution

1. Step 1: Write the proportion equation
   23,081.13 : 31,848.03 = 12,869.91 : x
2. Step 2: Convert to fraction form
   23,081.13/31,848.03 = 12,869.91/x
3. Step 3: Cross multiply
   23,081.13x = 31,848.03 × 12,869.91
4. Step 4: Simplify right side
   23,081.13x = 409,881,279.78
5. Step 5: Solve for x
   x = 409,881,279.78/23,081.13
6. Step 6: Final answer
   x = 17,758.28