Finding the Fourth Proportional to 76,799.04, 105,977.28 and 42,342.24

Step by Step Solution

1. Step 1: Write the proportion equation
   76,799.04 : 105,977.28 = 42,342.24 : x
2. Step 2: Convert to fraction form
   76,799.04/105,977.28 = 42,342.24/x
3. Step 3: Cross multiply
   76,799.04x = 105,977.28 × 42,342.24
4. Step 4: Simplify right side
   76,799.04x = 4,487,315,424.31
5. Step 5: Solve for x
   x = 4,487,315,424.31/76,799.04
6. Step 6: Final answer
   x = 58,429.32