Finding the Fourth Proportional to 143,498.70, 215,131.41 and 50,070.06

Step by Step Solution

1. Step 1: Write the proportion equation
   143,498.70 : 215,131.41 = 50,070.06 : x
2. Step 2: Convert to fraction form
   143,498.70/215,131.41 = 50,070.06/x
3. Step 3: Cross multiply
   143,498.70x = 215,131.41 × 50,070.06
4. Step 4: Simplify right side
   143,498.70x = 10,771,642,606.58
5. Step 5: Solve for x
   x = 10,771,642,606.58/143,498.70
6. Step 6: Final answer
   x = 75,064.39