Finding the Fourth Proportional to 56,168.54, 77,512.53 and 31,017.98

Step by Step Solution

1. Step 1: Write the proportion equation
   56,168.54 : 77,512.53 = 31,017.98 : x
2. Step 2: Convert to fraction form
   56,168.54/77,512.53 = 31,017.98/x
3. Step 3: Cross multiply
   56,168.54x = 77,512.53 × 31,017.98
4. Step 4: Simplify right side
   56,168.54x = 2,404,282,105.29
5. Step 5: Solve for x
   x = 2,404,282,105.29/56,168.54
6. Step 6: Final answer
   x = 42,804.78