Finding the Fourth Proportional to 72,070.72, 108,108.82 and 19,480.23

Step by Step Solution

1. Step 1: Write the proportion equation
   72,070.72 : 108,108.82 = 19,480.23 : x
2. Step 2: Convert to fraction form
   72,070.72/108,108.82 = 19,480.23/x
3. Step 3: Cross multiply
   72,070.72x = 108,108.82 × 19,480.23
4. Step 4: Simplify right side
   72,070.72x = 2,105,984,678.63
5. Step 5: Solve for x
   x = 2,105,984,678.63/72,070.72
6. Step 6: Final answer
   x = 29,221.09