Finding the Fourth Proportional to 108,799.42, 163,081.05 and 42,219.94

Step by Step Solution

1. Step 1: Write the proportion equation
   108,799.42 : 163,081.05 = 42,219.94 : x
2. Step 2: Convert to fraction form
   108,799.42/163,081.05 = 42,219.94/x
3. Step 3: Cross multiply
   108,799.42x = 163,081.05 × 42,219.94
4. Step 4: Simplify right side
   108,799.42x = 6,885,272,146.14
5. Step 5: Solve for x
   x = 6,885,272,146.14/108,799.42
6. Step 6: Final answer
   x = 63,284.09