Finding the Fourth Proportional to 72,819.41, 109,271.57 and 30,696.91

Step by Step Solution

1. Step 1: Write the proportion equation
   72,819.41 : 109,271.57 = 30,696.91 : x
2. Step 2: Convert to fraction form
   72,819.41/109,271.57 = 30,696.91/x
3. Step 3: Cross multiply
   72,819.41x = 109,271.57 × 30,696.91
4. Step 4: Simplify right side
   72,819.41x = 3,354,299,549.85
5. Step 5: Solve for x
   x = 3,354,299,549.85/72,819.41
6. Step 6: Final answer
   x = 46,063.26