Finding the Fourth Proportional to 89,715.56, 134,692.38 and 76,651.88

Step by Step Solution

1. Step 1: Write the proportion equation
   89,715.56 : 134,692.38 = 76,651.88 : x
2. Step 2: Convert to fraction form
   89,715.56/134,692.38 = 76,651.88/x
3. Step 3: Cross multiply
   89,715.56x = 134,692.38 × 76,651.88
4. Step 4: Simplify right side
   89,715.56x = 10,324,424,148.67
5. Step 5: Solve for x
   x = 10,324,424,148.67/89,715.56
6. Step 6: Final answer
   x = 115,079.53