Finding the Fourth Proportional to 142,985.52, 197,320.25 and 79,323.32

Step by Step Solution

1. Step 1: Write the proportion equation
   142,985.52 : 197,320.25 = 79,323.32 : x
2. Step 2: Convert to fraction form
   142,985.52/197,320.25 = 79,323.32/x
3. Step 3: Cross multiply
   142,985.52x = 197,320.25 × 79,323.32
4. Step 4: Simplify right side
   142,985.52x = 15,652,097,333.23
5. Step 5: Solve for x
   x = 15,652,097,333.23/142,985.52
6. Step 6: Final answer
   x = 109,466.31