Finding the Fourth Proportional to 23,978.87, 33,091.15 and 13,907.74

Step by Step Solution

1. Step 1: Write the proportion equation
   23,978.87 : 33,091.15 = 13,907.74 : x
2. Step 2: Convert to fraction form
   23,978.87/33,091.15 = 13,907.74/x
3. Step 3: Cross multiply
   23,978.87x = 33,091.15 × 13,907.74
4. Step 4: Simplify right side
   23,978.87x = 460,223,110.50
5. Step 5: Solve for x
   x = 460,223,110.50/23,978.87
6. Step 6: Final answer
   x = 19,192.86