Finding the Fourth Proportional to 76,796.66, 105,966.53 and 42,797.69

Step by Step Solution

1. Step 1: Write the proportion equation
   76,796.66 : 105,966.53 = 42,797.69 : x
2. Step 2: Convert to fraction form
   76,796.66/105,966.53 = 42,797.69/x
3. Step 3: Cross multiply
   76,796.66x = 105,966.53 × 42,797.69
4. Step 4: Simplify right side
   76,796.66x = 4,535,122,515.36
5. Step 5: Solve for x
   x = 4,535,122,515.36/76,796.66
6. Step 6: Final answer
   x = 59,053.64