Finding the Fourth Proportional to 129,577.98, 178,711.89 and 108,801.27

Step by Step Solution

1. Step 1: Write the proportion equation
   129,577.98 : 178,711.89 = 108,801.27 : x
2. Step 2: Convert to fraction form
   129,577.98/178,711.89 = 108,801.27/x
3. Step 3: Cross multiply
   129,577.98x = 178,711.89 × 108,801.27
4. Step 4: Simplify right side
   129,577.98x = 19,444,080,596.10
5. Step 5: Solve for x
   x = 19,444,080,596.10/129,577.98
6. Step 6: Final answer
   x = 150,056.98