Finding the Fourth Proportional to 81,822.68, 122,633.58 and 42,357.32

Step by Step Solution

1. Step 1: Write the proportion equation
   81,822.68 : 122,633.58 = 42,357.32 : x
2. Step 2: Convert to fraction form
   81,822.68/122,633.58 = 42,357.32/x
3. Step 3: Cross multiply
   81,822.68x = 122,633.58 × 42,357.32
4. Step 4: Simplify right side
   81,822.68x = 5,194,429,790.81
5. Step 5: Solve for x
   x = 5,194,429,790.81/81,822.68
6. Step 6: Final answer
   x = 63,483.99