Finding the Fourth Proportional to 151,100.85, 208,514.99 and 82,188.03

Step by Step Solution

1. Step 1: Write the proportion equation
   151,100.85 : 208,514.99 = 82,188.03 : x
2. Step 2: Convert to fraction form
   151,100.85/208,514.99 = 82,188.03/x
3. Step 3: Cross multiply
   151,100.85x = 208,514.99 × 82,188.03
4. Step 4: Simplify right side
   151,100.85x = 17,137,436,459.04
5. Step 5: Solve for x
   x = 17,137,436,459.04/151,100.85
6. Step 6: Final answer
   x = 113,417.21