Finding the Fourth Proportional to 55,236.89, 82,791.06 and 31,561.02

Step by Step Solution

1. Step 1: Write the proportion equation
   55,236.89 : 82,791.06 = 31,561.02 : x
2. Step 2: Convert to fraction form
   55,236.89/82,791.06 = 31,561.02/x
3. Step 3: Cross multiply
   55,236.89x = 82,791.06 × 31,561.02
4. Step 4: Simplify right side
   55,236.89x = 2,612,969,886.53
5. Step 5: Solve for x
   x = 2,612,969,886.53/55,236.89
6. Step 6: Final answer
   x = 47,304.80