Finding the Fourth Proportional to 52,789.56, 72,873.90 and 31,277.88

Step by Step Solution

1. Step 1: Write the proportion equation
   52,789.56 : 72,873.90 = 31,277.88 : x
2. Step 2: Convert to fraction form
   52,789.56/72,873.90 = 31,277.88/x
3. Step 3: Cross multiply
   52,789.56x = 72,873.90 × 31,277.88
4. Step 4: Simplify right side
   52,789.56x = 2,279,341,099.33
5. Step 5: Solve for x
   x = 2,279,341,099.33/52,789.56
6. Step 6: Final answer
   x = 43,177.88