Finding the Fourth Proportional to 148,978.79, 205,588.46 and 80,995.22

Step by Step Solution

1. Step 1: Write the proportion equation
   148,978.79 : 205,588.46 = 80,995.22 : x
2. Step 2: Convert to fraction form
   148,978.79/205,588.46 = 80,995.22/x
3. Step 3: Cross multiply
   148,978.79x = 205,588.46 × 80,995.22
4. Step 4: Simplify right side
   148,978.79x = 16,651,682,142.19
5. Step 5: Solve for x
   x = 16,651,682,142.19/148,978.79
6. Step 6: Final answer
   x = 111,772.17