Finding the Fourth Proportional to 81,388.98, 122,128.83 and 43,948.26

Step by Step Solution

1. Step 1: Write the proportion equation
   81,388.98 : 122,128.83 = 43,948.26 : x
2. Step 2: Convert to fraction form
   81,388.98/122,128.83 = 43,948.26/x
3. Step 3: Cross multiply
   81,388.98x = 122,128.83 × 43,948.26
4. Step 4: Simplify right side
   81,388.98x = 5,367,349,574.34
5. Step 5: Solve for x
   x = 5,367,349,574.34/81,388.98
6. Step 6: Final answer
   x = 65,946.88