Finding the Fourth Proportional to 56,131.24, 84,152.46 and 21,067

Step by Step Solution

1. Step 1: Write the proportion equation
   56,131.24 : 84,152.46 = 21,067 : x
2. Step 2: Convert to fraction form
   56,131.24/84,152.46 = 21,067/x
3. Step 3: Cross multiply
   56,131.24x = 84,152.46 × 21,067
4. Step 4: Simplify right side
   56,131.24x = 1,772,839,874.82
5. Step 5: Solve for x
   x = 1,772,839,874.82/56,131.24
6. Step 6: Final answer
   x = 31,583.84