Finding the Fourth Proportional to 76,561.50, 105,658.38 and 42,573.46

Step by Step Solution

1. Step 1: Write the proportion equation
   76,561.50 : 105,658.38 = 42,573.46 : x
2. Step 2: Convert to fraction form
   76,561.50/105,658.38 = 42,573.46/x
3. Step 3: Cross multiply
   76,561.50x = 105,658.38 × 42,573.46
4. Step 4: Simplify right side
   76,561.50x = 4,498,242,814.59
5. Step 5: Solve for x
   x = 4,498,242,814.59/76,561.50
6. Step 6: Final answer
   x = 58,753.33