Finding the Fourth Proportional to 76,150.16, 105,087.36 and 42,161

Step by Step Solution

1. Step 1: Write the proportion equation
   76,150.16 : 105,087.36 = 42,161 : x
2. Step 2: Convert to fraction form
   76,150.16/105,087.36 = 42,161/x
3. Step 3: Cross multiply
   76,150.16x = 105,087.36 × 42,161
4. Step 4: Simplify right side
   76,150.16x = 4,430,588,184.96
5. Step 5: Solve for x
   x = 4,430,588,184.96/76,150.16
6. Step 6: Final answer
   x = 58,182.26