Finding the Fourth Proportional to 76,796.75, 105,980.00 and 42,807.39

Step by Step Solution

1. Step 1: Write the proportion equation
   76,796.75 : 105,980.00 = 42,807.39 : x
2. Step 2: Convert to fraction form
   76,796.75/105,980.00 = 42,807.39/x
3. Step 3: Cross multiply
   76,796.75x = 105,980.00 × 42,807.39
4. Step 4: Simplify right side
   76,796.75x = 4,536,726,580.74
5. Step 5: Solve for x
   x = 4,536,726,580.74/76,796.75
6. Step 6: Final answer
   x = 59,074.46