Finding the Fourth Proportional to 72,394.34, 99,896.12 and 42,173.34

Step by Step Solution

1. Step 1: Write the proportion equation
   72,394.34 : 99,896.12 = 42,173.34 : x
2. Step 2: Convert to fraction form
   72,394.34/99,896.12 = 42,173.34/x
3. Step 3: Cross multiply
   72,394.34x = 99,896.12 × 42,173.34
4. Step 4: Simplify right side
   72,394.34x = 4,212,953,033.44
5. Step 5: Solve for x
   x = 4,212,953,033.44/72,394.34
6. Step 6: Final answer
   x = 58,194.51