Finding the Fourth Proportional to 72,818.96, 109,234.50 and 19,518.52

Step by Step Solution

1. Step 1: Write the proportion equation
   72,818.96 : 109,234.50 = 19,518.52 : x
2. Step 2: Convert to fraction form
   72,818.96/109,234.50 = 19,518.52/x
3. Step 3: Cross multiply
   72,818.96x = 109,234.50 × 19,518.52
4. Step 4: Simplify right side
   72,818.96x = 2,132,095,772.94
5. Step 5: Solve for x
   x = 2,132,095,772.94/72,818.96
6. Step 6: Final answer
   x = 29,279.40