Finding the Fourth Proportional to 143,097.59, 197,483.87 and 82,670.78

Step by Step Solution

1. Step 1: Write the proportion equation
   143,097.59 : 197,483.87 = 82,670.78 : x
2. Step 2: Convert to fraction form
   143,097.59/197,483.87 = 82,670.78/x
3. Step 3: Cross multiply
   143,097.59x = 197,483.87 × 82,670.78
4. Step 4: Simplify right side
   143,097.59x = 16,326,145,570.32
5. Step 5: Solve for x
   x = 16,326,145,570.32/143,097.59
6. Step 6: Final answer
   x = 114,090.99