Finding the Fourth Proportional to 142,036.58, 212,851.88 and 104,300.62

Step by Step Solution

1. Step 1: Write the proportion equation
   142,036.58 : 212,851.88 = 104,300.62 : x
2. Step 2: Convert to fraction form
   142,036.58/212,851.88 = 104,300.62/x
3. Step 3: Cross multiply
   142,036.58x = 212,851.88 × 104,300.62
4. Step 4: Simplify right side
   142,036.58x = 22,200,583,052.17
5. Step 5: Solve for x
   x = 22,200,583,052.17/142,036.58
6. Step 6: Final answer
   x = 156,301.87