Finding the Fourth Proportional to 143,978.60, 215,998.88 and 44,145.69

Step by Step Solution

1. Step 1: Write the proportion equation
   143,978.60 : 215,998.88 = 44,145.69 : x
2. Step 2: Convert to fraction form
   143,978.60/215,998.88 = 44,145.69/x
3. Step 3: Cross multiply
   143,978.60x = 215,998.88 × 44,145.69
4. Step 4: Simplify right side
   143,978.60x = 9,535,419,376.10
5. Step 5: Solve for x
   x = 9,535,419,376.10/143,978.60
6. Step 6: Final answer
   x = 66,228.03