Finding the Fourth Proportional to 76,183, 105,132.54 and 42,649.72

Step by Step Solution

1. Step 1: Write the proportion equation
   76,183 : 105,132.54 = 42,649.72 : x
2. Step 2: Convert to fraction form
   76,183/105,132.54 = 42,649.72/x
3. Step 3: Cross multiply
   76,183x = 105,132.54 × 42,649.72
4. Step 4: Simplify right side
   76,183x = 4,483,873,393.89
5. Step 5: Solve for x
   x = 4,483,873,393.89/76,183
6. Step 6: Final answer
   x = 58,856.61