Finding the Fourth Proportional to 52,256.91, 72,091.40 and 31,023.87

Step by Step Solution

1. Step 1: Write the proportion equation
   52,256.91 : 72,091.40 = 31,023.87 : x
2. Step 2: Convert to fraction form
   52,256.91/72,091.40 = 31,023.87/x
3. Step 3: Cross multiply
   52,256.91x = 72,091.40 × 31,023.87
4. Step 4: Simplify right side
   52,256.91x = 2,236,554,066.60
5. Step 5: Solve for x
   x = 2,236,554,066.60/52,256.91
6. Step 6: Final answer
   x = 42,799.20