Finding the Fourth Proportional to 72,956.70, 109,359.82 and 52,915.98

Step by Step Solution

1. Step 1: Write the proportion equation
   72,956.70 : 109,359.82 = 52,915.98 : x
2. Step 2: Convert to fraction form
   72,956.70/109,359.82 = 52,915.98/x
3. Step 3: Cross multiply
   72,956.70x = 109,359.82 × 52,915.98
4. Step 4: Simplify right side
   72,956.70x = 5,786,882,524.17
5. Step 5: Solve for x
   x = 5,786,882,524.17/72,956.70
6. Step 6: Final answer
   x = 79,319.41