Finding the Fourth Proportional to 142,836.84, 214,181.82 and 83,788.92

Step by Step Solution

1. Step 1: Write the proportion equation
   142,836.84 : 214,181.82 = 83,788.92 : x
2. Step 2: Convert to fraction form
   142,836.84/214,181.82 = 83,788.92/x
3. Step 3: Cross multiply
   142,836.84x = 214,181.82 × 83,788.92
4. Step 4: Simplify right side
   142,836.84x = 17,946,063,381.43
5. Step 5: Solve for x
   x = 17,946,063,381.43/142,836.84
6. Step 6: Final answer
   x = 125,640.30