Finding the Fourth Proportional to 76,582.99, 105,678.40 and 42,591.54

Step by Step Solution

1. Step 1: Write the proportion equation
   76,582.99 : 105,678.40 = 42,591.54 : x
2. Step 2: Convert to fraction form
   76,582.99/105,678.40 = 42,591.54/x
3. Step 3: Cross multiply
   76,582.99x = 105,678.40 × 42,591.54
4. Step 4: Simplify right side
   76,582.99x = 4,501,005,587.78
5. Step 5: Solve for x
   x = 4,501,005,587.78/76,582.99
6. Step 6: Final answer
   x = 58,772.92