Finding the Fourth Proportional to 72,093.42, 108,142.56 and 19,503.36

Step by Step Solution

1. Step 1: Write the proportion equation
   72,093.42 : 108,142.56 = 19,503.36 : x
2. Step 2: Convert to fraction form
   72,093.42/108,142.56 = 19,503.36/x
3. Step 3: Cross multiply
   72,093.42x = 108,142.56 × 19,503.36
4. Step 4: Simplify right side
   72,093.42x = 2,109,143,279.00
5. Step 5: Solve for x
   x = 2,109,143,279.00/72,093.42
6. Step 6: Final answer
   x = 29,255.70