Finding the Fourth Proportional to 103,997.16, 143,482.53 and 82,123.98

Step by Step Solution

1. Step 1: Write the proportion equation
   103,997.16 : 143,482.53 = 82,123.98 : x
2. Step 2: Convert to fraction form
   103,997.16/143,482.53 = 82,123.98/x
3. Step 3: Cross multiply
   103,997.16x = 143,482.53 × 82,123.98
4. Step 4: Simplify right side
   103,997.16x = 11,783,356,424.07
5. Step 5: Solve for x
   x = 11,783,356,424.07/103,997.16
6. Step 6: Final answer
   x = 113,304.60