Finding the Fourth Proportional to 75,682.16, 104,437.32 and 42,146

Step by Step Solution

1. Step 1: Write the proportion equation
   75,682.16 : 104,437.32 = 42,146 : x
2. Step 2: Convert to fraction form
   75,682.16/104,437.32 = 42,146/x
3. Step 3: Cross multiply
   75,682.16x = 104,437.32 × 42,146
4. Step 4: Simplify right side
   75,682.16x = 4,401,615,288.72
5. Step 5: Solve for x
   x = 4,401,615,288.72/75,682.16
6. Step 6: Final answer
   x = 58,159.22