Finding the Fourth Proportional to 76,344.82, 105,355.68 and 42,358.47

Step by Step Solution

1. Step 1: Write the proportion equation
   76,344.82 : 105,355.68 = 42,358.47 : x
2. Step 2: Convert to fraction form
   76,344.82/105,355.68 = 42,358.47/x
3. Step 3: Cross multiply
   76,344.82x = 105,355.68 × 42,358.47
4. Step 4: Simplify right side
   76,344.82x = 4,462,705,410.61
5. Step 5: Solve for x
   x = 4,462,705,410.61/76,344.82
6. Step 6: Final answer
   x = 58,454.59