Finding the Fourth Proportional to 109,488.16, 151,179.17 and 85,682.67

Step by Step Solution

1. Step 1: Write the proportion equation
   109,488.16 : 151,179.17 = 85,682.67 : x
2. Step 2: Convert to fraction form
   109,488.16/151,179.17 = 85,682.67/x
3. Step 3: Cross multiply
   109,488.16x = 151,179.17 × 85,682.67
4. Step 4: Simplify right side
   109,488.16x = 12,953,434,933.98
5. Step 5: Solve for x
   x = 12,953,434,933.98/109,488.16
6. Step 6: Final answer
   x = 118,309.00