Finding the Fourth Proportional to 189,735.55, 284,695.59 and 89,776.67

Step by Step Solution

1. Step 1: Write the proportion equation
   189,735.55 : 284,695.59 = 89,776.67 : x
2. Step 2: Convert to fraction form
   189,735.55/284,695.59 = 89,776.67/x
3. Step 3: Cross multiply
   189,735.55x = 284,695.59 × 89,776.67
4. Step 4: Simplify right side
   189,735.55x = 25,559,022,033.89
5. Step 5: Solve for x
   x = 25,559,022,033.89/189,735.55
6. Step 6: Final answer
   x = 134,708.66