Finding the Fourth Proportional to 72,884.50, 109,326.88 and 20,293.98

Step by Step Solution

1. Step 1: Write the proportion equation
   72,884.50 : 109,326.88 = 20,293.98 : x
2. Step 2: Convert to fraction form
   72,884.50/109,326.88 = 20,293.98/x
3. Step 3: Cross multiply
   72,884.50x = 109,326.88 × 20,293.98
4. Step 4: Simplify right side
   72,884.50x = 2,218,677,516.18
5. Step 5: Solve for x
   x = 2,218,677,516.18/72,884.50
6. Step 6: Final answer
   x = 30,441.01