Finding the Fourth Proportional to 105,980.15, 146,152.17 and 69,617.63

Step by Step Solution

1. Step 1: Write the proportion equation
   105,980.15 : 146,152.17 = 69,617.63 : x
2. Step 2: Convert to fraction form
   105,980.15/146,152.17 = 69,617.63/x
3. Step 3: Cross multiply
   105,980.15x = 146,152.17 × 69,617.63
4. Step 4: Simplify right side
   105,980.15x = 10,174,766,964.00
5. Step 5: Solve for x
   x = 10,174,766,964.00/105,980.15
6. Step 6: Final answer
   x = 96,006.35