Finding the Fourth Proportional to 76,499.26, 105,571.36 and 42,043.37

Step by Step Solution

1. Step 1: Write the proportion equation
   76,499.26 : 105,571.36 = 42,043.37 : x
2. Step 2: Convert to fraction form
   76,499.26/105,571.36 = 42,043.37/x
3. Step 3: Cross multiply
   76,499.26x = 105,571.36 × 42,043.37
4. Step 4: Simplify right side
   76,499.26x = 4,438,575,616.17
5. Step 5: Solve for x
   x = 4,438,575,616.17/76,499.26
6. Step 6: Final answer
   x = 58,021.16