Finding the Fourth Proportional to 72,065.42, 108,100.56 and 19,475.36

Step by Step Solution

1. Step 1: Write the proportion equation
   72,065.42 : 108,100.56 = 19,475.36 : x
2. Step 2: Convert to fraction form
   72,065.42/108,100.56 = 19,475.36/x
3. Step 3: Cross multiply
   72,065.42x = 108,100.56 × 19,475.36
4. Step 4: Simplify right side
   72,065.42x = 2,105,297,322.20
5. Step 5: Solve for x
   x = 2,105,297,322.20/72,065.42
6. Step 6: Final answer
   x = 29,213.70