Finding the Fourth Proportional to 76,134, 105,064.92 and 42,606.48

Step by Step Solution

1. Step 1: Write the proportion equation
   76,134 : 105,064.92 = 42,606.48 : x
2. Step 2: Convert to fraction form
   76,134/105,064.92 = 42,606.48/x
3. Step 3: Cross multiply
   76,134x = 105,064.92 × 42,606.48
4. Step 4: Simplify right side
   76,134x = 4,476,446,412.68
5. Step 5: Solve for x
   x = 4,476,446,412.68/76,134
6. Step 6: Final answer
   x = 58,796.94