Finding the Fourth Proportional to 76,350.50, 105,373.42 and 42,816.50

Step by Step Solution

1. Step 1: Write the proportion equation
   76,350.50 : 105,373.42 = 42,816.50 : x
2. Step 2: Convert to fraction form
   76,350.50/105,373.42 = 42,816.50/x
3. Step 3: Cross multiply
   76,350.50x = 105,373.42 × 42,816.50
4. Step 4: Simplify right side
   76,350.50x = 4,511,721,037.43
5. Step 5: Solve for x
   x = 4,511,721,037.43/76,350.50
6. Step 6: Final answer
   x = 59,092.23