Finding the Fourth Proportional to 76,160.36, 105,097.86 and 42,166.46

Step by Step Solution

1. Step 1: Write the proportion equation
   76,160.36 : 105,097.86 = 42,166.46 : x
2. Step 2: Convert to fraction form
   76,160.36/105,097.86 = 42,166.46/x
3. Step 3: Cross multiply
   76,160.36x = 105,097.86 × 42,166.46
4. Step 4: Simplify right side
   76,160.36x = 4,431,604,184.29
5. Step 5: Solve for x
   x = 4,431,604,184.29/76,160.36
6. Step 6: Final answer
   x = 58,187.81