Finding the Fourth Proportional to 143,440.34, 197,944.16 and 83,002.60

Step by Step Solution

1. Step 1: Write the proportion equation
   143,440.34 : 197,944.16 = 83,002.60 : x
2. Step 2: Convert to fraction form
   143,440.34/197,944.16 = 83,002.60/x
3. Step 3: Cross multiply
   143,440.34x = 197,944.16 × 83,002.60
4. Step 4: Simplify right side
   143,440.34x = 16,429,879,934.82
5. Step 5: Solve for x
   x = 16,429,879,934.82/143,440.34
6. Step 6: Final answer
   x = 114,541.56