Finding the Fourth Proportional to 76,530.48, 105,611.76 and 42,996.48

Step by Step Solution

1. Step 1: Write the proportion equation
   76,530.48 : 105,611.76 = 42,996.48 : x
2. Step 2: Convert to fraction form
   76,530.48/105,611.76 = 42,996.48/x
3. Step 3: Cross multiply
   76,530.48x = 105,611.76 × 42,996.48
4. Step 4: Simplify right side
   76,530.48x = 4,540,933,926.60
5. Step 5: Solve for x
   x = 4,540,933,926.60/76,530.48
6. Step 6: Final answer
   x = 59,334.97