Finding the Fourth Proportional to 72,598.42, 108,877.98 and 19,995.40

Step by Step Solution

1. Step 1: Write the proportion equation
   72,598.42 : 108,877.98 = 19,995.40 : x
2. Step 2: Convert to fraction form
   72,598.42/108,877.98 = 19,995.40/x
3. Step 3: Cross multiply
   72,598.42x = 108,877.98 × 19,995.40
4. Step 4: Simplify right side
   72,598.42x = 2,177,058,761.29
5. Step 5: Solve for x
   x = 2,177,058,761.29/72,598.42
6. Step 6: Final answer
   x = 29,987.69