Finding the Fourth Proportional to 89,514.72, 134,805.06 and 77,967.36

Step by Step Solution

1. Step 1: Write the proportion equation
   89,514.72 : 134,805.06 = 77,967.36 : x
2. Step 2: Convert to fraction form
   89,514.72/134,805.06 = 77,967.36/x
3. Step 3: Cross multiply
   89,514.72x = 134,805.06 × 77,967.36
4. Step 4: Simplify right side
   89,514.72x = 10,510,394,642.84
5. Step 5: Solve for x
   x = 10,510,394,642.84/89,514.72
6. Step 6: Final answer
   x = 117,415.27