Finding the Fourth Proportional to 124,748.69, 172,104.26 and 76,919.00

Step by Step Solution

1. Step 1: Write the proportion equation
   124,748.69 : 172,104.26 = 76,919.00 : x
2. Step 2: Convert to fraction form
   124,748.69/172,104.26 = 76,919.00/x
3. Step 3: Cross multiply
   124,748.69x = 172,104.26 × 76,919.00
4. Step 4: Simplify right side
   124,748.69x = 13,238,086,329.82
5. Step 5: Solve for x
   x = 13,238,086,329.82/124,748.69
6. Step 6: Final answer
   x = 106,118.04