Finding the Fourth Proportional to 129,561.53, 178,801.83 and 75,850.63

Step by Step Solution

1. Step 1: Write the proportion equation
   129,561.53 : 178,801.83 = 75,850.63 : x
2. Step 2: Convert to fraction form
   129,561.53/178,801.83 = 75,850.63/x
3. Step 3: Cross multiply
   129,561.53x = 178,801.83 × 75,850.63
4. Step 4: Simplify right side
   129,561.53x = 13,562,231,003.65
5. Step 5: Solve for x
   x = 13,562,231,003.65/129,561.53
6. Step 6: Final answer
   x = 104,677.92