Finding the Fourth Proportional to 31,188, 43,040.16 and 19,259.52

Step by Step Solution

1. Step 1: Write the proportion equation
   31,188 : 43,040.16 = 19,259.52 : x
2. Step 2: Convert to fraction form
   31,188/43,040.16 = 19,259.52/x
3. Step 3: Cross multiply
   31,188x = 43,040.16 × 19,259.52
4. Step 4: Simplify right side
   31,188x = 828,932,822.32
5. Step 5: Solve for x
   x = 828,932,822.32/31,188
6. Step 6: Final answer
   x = 26,578.58