Finding the Fourth Proportional to 108,739.17, 150,060.06 and 60,991.47

Step by Step Solution

1. Step 1: Write the proportion equation
   108,739.17 : 150,060.06 = 60,991.47 : x
2. Step 2: Convert to fraction form
   108,739.17/150,060.06 = 60,991.47/x
3. Step 3: Cross multiply
   108,739.17x = 150,060.06 × 60,991.47
4. Step 4: Simplify right side
   108,739.17x = 9,152,383,647.69
5. Step 5: Solve for x
   x = 9,152,383,647.69/108,739.17
6. Step 6: Final answer
   x = 84,168.23