Finding the Fourth Proportional to 76,154.27, 105,092.87 and 42,620.27

Step by Step Solution

1. Step 1: Write the proportion equation
   76,154.27 : 105,092.87 = 42,620.27 : x
2. Step 2: Convert to fraction form
   76,154.27/105,092.87 = 42,620.27/x
3. Step 3: Cross multiply
   76,154.27x = 105,092.87 × 42,620.27
4. Step 4: Simplify right side
   76,154.27x = 4,479,086,075.56
5. Step 5: Solve for x
   x = 4,479,086,075.56/76,154.27
6. Step 6: Final answer
   x = 58,815.96