Finding the Fourth Proportional to 39,858, 55,004.04 and 23,100.72

Step by Step Solution

1. Step 1: Write the proportion equation
   39,858 : 55,004.04 = 23,100.72 : x
2. Step 2: Convert to fraction form
   39,858/55,004.04 = 23,100.72/x
3. Step 3: Cross multiply
   39,858x = 55,004.04 × 23,100.72
4. Step 4: Simplify right side
   39,858x = 1,270,632,926.91
5. Step 5: Solve for x
   x = 1,270,632,926.91/39,858
6. Step 6: Final answer
   x = 31,878.99