Finding the Fourth Proportional to 136,422.89, 188,238.61 and 75,992.03

Step by Step Solution

1. Step 1: Write the proportion equation
   136,422.89 : 188,238.61 = 75,992.03 : x
2. Step 2: Convert to fraction form
   136,422.89/188,238.61 = 75,992.03/x
3. Step 3: Cross multiply
   136,422.89x = 188,238.61 × 75,992.03
4. Step 4: Simplify right side
   136,422.89x = 14,304,634,378.89
5. Step 5: Solve for x
   x = 14,304,634,378.89/136,422.89
6. Step 6: Final answer
   x = 104,855.09