Finding the Fourth Proportional to 52,659.05, 72,667.53 and 31,423.28

Step by Step Solution

1. Step 1: Write the proportion equation
   52,659.05 : 72,667.53 = 31,423.28 : x
2. Step 2: Convert to fraction form
   52,659.05/72,667.53 = 31,423.28/x
3. Step 3: Cross multiply
   52,659.05x = 72,667.53 × 31,423.28
4. Step 4: Simplify right side
   52,659.05x = 2,283,451,778.76
5. Step 5: Solve for x
   x = 2,283,451,778.76/52,659.05
6. Step 6: Final answer
   x = 43,362.95