Finding the Fourth Proportional to 72,503.42, 108,750.27 and 19,908.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,503.42 : 108,750.27 = 19,908.50 : x
2. Step 2: Convert to fraction form
   72,503.42/108,750.27 = 19,908.50/x
3. Step 3: Cross multiply
   72,503.42x = 108,750.27 × 19,908.50
4. Step 4: Simplify right side
   72,503.42x = 2,165,054,750.30
5. Step 5: Solve for x
   x = 2,165,054,750.30/72,503.42
6. Step 6: Final answer
   x = 29,861.42