Finding the Fourth Proportional to 102,123.18, 140,946.89 and 59,673.51

Step by Step Solution

1. Step 1: Write the proportion equation
   102,123.18 : 140,946.89 = 59,673.51 : x
2. Step 2: Convert to fraction form
   102,123.18/140,946.89 = 59,673.51/x
3. Step 3: Cross multiply
   102,123.18x = 140,946.89 × 59,673.51
4. Step 4: Simplify right side
   102,123.18x = 8,410,795,351.52
5. Step 5: Solve for x
   x = 8,410,795,351.52/102,123.18
6. Step 6: Final answer
   x = 82,359.32