Finding the Fourth Proportional to 39,111.07, 53,958.01 and 25,515.10

Step by Step Solution

1. Step 1: Write the proportion equation
   39,111.07 : 53,958.01 = 25,515.10 : x
2. Step 2: Convert to fraction form
   39,111.07/53,958.01 = 25,515.10/x
3. Step 3: Cross multiply
   39,111.07x = 53,958.01 × 25,515.10
4. Step 4: Simplify right side
   39,111.07x = 1,376,743,822.27
5. Step 5: Solve for x
   x = 1,376,743,822.27/39,111.07
6. Step 6: Final answer
   x = 35,200.87