Finding the Fourth Proportional to 151,080.84, 208,491.28 and 86,571

Step by Step Solution

1. Step 1: Write the proportion equation
   151,080.84 : 208,491.28 = 86,571 : x
2. Step 2: Convert to fraction form
   151,080.84/208,491.28 = 86,571/x
3. Step 3: Cross multiply
   151,080.84x = 208,491.28 × 86,571
4. Step 4: Simplify right side
   151,080.84x = 18,049,298,384.45
5. Step 5: Solve for x
   x = 18,049,298,384.45/151,080.84
6. Step 6: Final answer
   x = 119,467.82