Finding the Fourth Proportional to 52,664.31, 72,667.41 and 31,154.96

Step by Step Solution

1. Step 1: Write the proportion equation
   52,664.31 : 72,667.41 = 31,154.96 : x
2. Step 2: Convert to fraction form
   52,664.31/72,667.41 = 31,154.96/x
3. Step 3: Cross multiply
   52,664.31x = 72,667.41 × 31,154.96
4. Step 4: Simplify right side
   52,664.31x = 2,263,950,540.57
5. Step 5: Solve for x
   x = 2,263,950,540.57/52,664.31
6. Step 6: Final answer
   x = 42,988.32