Finding the Fourth Proportional to 72,167.34, 108,236.42 and 19,564.32

Step by Step Solution

1. Step 1: Write the proportion equation
   72,167.34 : 108,236.42 = 19,564.32 : x
2. Step 2: Convert to fraction form
   72,167.34/108,236.42 = 19,564.32/x
3. Step 3: Cross multiply
   72,167.34x = 108,236.42 × 19,564.32
4. Step 4: Simplify right side
   72,167.34x = 2,117,571,956.53
5. Step 5: Solve for x
   x = 2,117,571,956.53/72,167.34
6. Step 6: Final answer
   x = 29,342.52