Finding the Fourth Proportional to 52,843.21, 72,926.61 and 31,345.72

Step by Step Solution

1. Step 1: Write the proportion equation
   52,843.21 : 72,926.61 = 31,345.72 : x
2. Step 2: Convert to fraction form
   52,843.21/72,926.61 = 31,345.72/x
3. Step 3: Cross multiply
   52,843.21x = 72,926.61 × 31,345.72
4. Step 4: Simplify right side
   52,843.21x = 2,285,936,732.98
5. Step 5: Solve for x
   x = 2,285,936,732.98/52,843.21
6. Step 6: Final answer
   x = 43,258.86