Finding the Fourth Proportional to 72,820.98, 109,237.50 and 19,520.52

Step by Step Solution

1. Step 1: Write the proportion equation
   72,820.98 : 109,237.50 = 19,520.52 : x
2. Step 2: Convert to fraction form
   72,820.98/109,237.50 = 19,520.52/x
3. Step 3: Cross multiply
   72,820.98x = 109,237.50 × 19,520.52
4. Step 4: Simplify right side
   72,820.98x = 2,132,372,803.50
5. Step 5: Solve for x
   x = 2,132,372,803.50/72,820.98
6. Step 6: Final answer
   x = 29,282.40