Finding the Fourth Proportional to 70,796.23, 106,144.43 and 28,663.88

Step by Step Solution

1. Step 1: Write the proportion equation
   70,796.23 : 106,144.43 = 28,663.88 : x
2. Step 2: Convert to fraction form
   70,796.23/106,144.43 = 28,663.88/x
3. Step 3: Cross multiply
   70,796.23x = 106,144.43 × 28,663.88
4. Step 4: Simplify right side
   70,796.23x = 3,042,510,530.15
5. Step 5: Solve for x
   x = 3,042,510,530.15/70,796.23
6. Step 6: Final answer
   x = 42,975.60