Finding the Fourth Proportional to 56,179.72, 77,528.42 and 31,029.22

Step by Step Solution

1. Step 1: Write the proportion equation
   56,179.72 : 77,528.42 = 31,029.22 : x
2. Step 2: Convert to fraction form
   56,179.72/77,528.42 = 31,029.22/x
3. Step 3: Cross multiply
   56,179.72x = 77,528.42 × 31,029.22
4. Step 4: Simplify right side
   56,179.72x = 2,405,646,400.43
5. Step 5: Solve for x
   x = 2,405,646,400.43/56,179.72
6. Step 6: Final answer
   x = 42,820.55