Finding the Fourth Proportional to 98,647.37, 136,141.71 and 60,406.73

Step by Step Solution

1. Step 1: Write the proportion equation
   98,647.37 : 136,141.71 = 60,406.73 : x
2. Step 2: Convert to fraction form
   98,647.37/136,141.71 = 60,406.73/x
3. Step 3: Cross multiply
   98,647.37x = 136,141.71 × 60,406.73
4. Step 4: Simplify right side
   98,647.37x = 8,223,875,517.71
5. Step 5: Solve for x
   x = 8,223,875,517.71/98,647.37
6. Step 6: Final answer
   x = 83,366.39