Finding the Fourth Proportional to 142,080, 213,123.84 and 43,584

Step by Step Solution

1. Step 1: Write the proportion equation
   142,080 : 213,123.84 = 43,584 : x
2. Step 2: Convert to fraction form
   142,080/213,123.84 = 43,584/x
3. Step 3: Cross multiply
   142,080x = 213,123.84 × 43,584
4. Step 4: Simplify right side
   142,080x = 9,288,789,442.56
5. Step 5: Solve for x
   x = 9,288,789,442.56/142,080
6. Step 6: Final answer
   x = 65,377.18