Finding the Fourth Proportional to 76,788.68, 105,965.70 and 42,796.04

Step by Step Solution

1. Step 1: Write the proportion equation
   76,788.68 : 105,965.70 = 42,796.04 : x
2. Step 2: Convert to fraction form
   76,788.68/105,965.70 = 42,796.04/x
3. Step 3: Cross multiply
   76,788.68x = 105,965.70 × 42,796.04
4. Step 4: Simplify right side
   76,788.68x = 4,534,912,335.83
5. Step 5: Solve for x
   x = 4,534,912,335.83/76,788.68
6. Step 6: Final answer
   x = 59,057.04