Finding the Fourth Proportional to 153,682, 212,081.16 and 83,026

Step by Step Solution

1. Step 1: Write the proportion equation
   153,682 : 212,081.16 = 83,026 : x
2. Step 2: Convert to fraction form
   153,682/212,081.16 = 83,026/x
3. Step 3: Cross multiply
   153,682x = 212,081.16 × 83,026
4. Step 4: Simplify right side
   153,682x = 17,608,250,390.16
5. Step 5: Solve for x
   x = 17,608,250,390.16/153,682
6. Step 6: Final answer
   x = 114,575.88