Finding the Fourth Proportional to 89,886, 124,042.68 and 50,142

Step by Step Solution

1. Step 1: Write the proportion equation
   89,886 : 124,042.68 = 50,142 : x
2. Step 2: Convert to fraction form
   89,886/124,042.68 = 50,142/x
3. Step 3: Cross multiply
   89,886x = 124,042.68 × 50,142
4. Step 4: Simplify right side
   89,886x = 6,219,748,060.56
5. Step 5: Solve for x
   x = 6,219,748,060.56/89,886
6. Step 6: Final answer
   x = 69,195.96