Finding the Fourth Proportional to 72,483.58, 108,708.54 and 19,897.30

Step by Step Solution

1. Step 1: Write the proportion equation
   72,483.58 : 108,708.54 = 19,897.30 : x
2. Step 2: Convert to fraction form
   72,483.58/108,708.54 = 19,897.30/x
3. Step 3: Cross multiply
   72,483.58x = 108,708.54 × 19,897.30
4. Step 4: Simplify right side
   72,483.58x = 2,163,006,432.94
5. Step 5: Solve for x
   x = 2,163,006,432.94/72,483.58
6. Step 6: Final answer
   x = 29,841.33