Finding the Fourth Proportional to 56,178.72, 77,527.04 and 31,028.22

Step by Step Solution

1. Step 1: Write the proportion equation
   56,178.72 : 77,527.04 = 31,028.22 : x
2. Step 2: Convert to fraction form
   56,178.72/77,527.04 = 31,028.22/x
3. Step 3: Cross multiply
   56,178.72x = 77,527.04 × 31,028.22
4. Step 4: Simplify right side
   56,178.72x = 2,405,525,897.93
5. Step 5: Solve for x
   x = 2,405,525,897.93/56,178.72
6. Step 6: Final answer
   x = 42,819.17