Finding the Fourth Proportional to 70,946.01, 106,231.23 and 42,828.48

Step by Step Solution

1. Step 1: Write the proportion equation
   70,946.01 : 106,231.23 = 42,828.48 : x
2. Step 2: Convert to fraction form
   70,946.01/106,231.23 = 42,828.48/x
3. Step 3: Cross multiply
   70,946.01x = 106,231.23 × 42,828.48
4. Step 4: Simplify right side
   70,946.01x = 4,549,722,109.43
5. Step 5: Solve for x
   x = 4,549,722,109.43/70,946.01
6. Step 6: Final answer
   x = 64,129.36