Finding the Fourth Proportional to 76,339.58, 105,348.52 and 42,353.23

Step by Step Solution

1. Step 1: Write the proportion equation
   76,339.58 : 105,348.52 = 42,353.23 : x
2. Step 2: Convert to fraction form
   76,339.58/105,348.52 = 42,353.23/x
3. Step 3: Cross multiply
   76,339.58x = 105,348.52 × 42,353.23
4. Step 4: Simplify right side
   76,339.58x = 4,461,849,846.58
5. Step 5: Solve for x
   x = 4,461,849,846.58/76,339.58
6. Step 6: Final answer
   x = 58,447.40