Finding the Fourth Proportional to 99,661.69, 149,493.08 and 25,789.69

Step by Step Solution

1. Step 1: Write the proportion equation
   99,661.69 : 149,493.08 = 25,789.69 : x
2. Step 2: Convert to fraction form
   99,661.69/149,493.08 = 25,789.69/x
3. Step 3: Cross multiply
   99,661.69x = 149,493.08 × 25,789.69
4. Step 4: Simplify right side
   99,661.69x = 3,855,379,687.66
5. Step 5: Solve for x
   x = 3,855,379,687.66/99,661.69
6. Step 6: Final answer
   x = 38,684.67