Finding the Fourth Proportional to 105,976.47, 146,147.31 and 69,613.74

Step by Step Solution

1. Step 1: Write the proportion equation
   105,976.47 : 146,147.31 = 69,613.74 : x
2. Step 2: Convert to fraction form
   105,976.47/146,147.31 = 69,613.74/x
3. Step 3: Cross multiply
   105,976.47x = 146,147.31 × 69,613.74
4. Step 4: Simplify right side
   105,976.47x = 10,173,860,840.04
5. Step 5: Solve for x
   x = 10,173,860,840.04/105,976.47
6. Step 6: Final answer
   x = 96,001.13