Finding the Fourth Proportional to 76,558.50, 105,654.24 and 42,570.46

Step by Step Solution

1. Step 1: Write the proportion equation
   76,558.50 : 105,654.24 = 42,570.46 : x
2. Step 2: Convert to fraction form
   76,558.50/105,654.24 = 42,570.46/x
3. Step 3: Cross multiply
   76,558.50x = 105,654.24 × 42,570.46
4. Step 4: Simplify right side
   76,558.50x = 4,497,749,597.75
5. Step 5: Solve for x
   x = 4,497,749,597.75/76,558.50
6. Step 6: Final answer
   x = 58,749.19