Finding the Fourth Proportional to 109,367.65, 164,065.16 and 42,799.19

Step by Step Solution

1. Step 1: Write the proportion equation
   109,367.65 : 164,065.16 = 42,799.19 : x
2. Step 2: Convert to fraction form
   109,367.65/164,065.16 = 42,799.19/x
3. Step 3: Cross multiply
   109,367.65x = 164,065.16 × 42,799.19
4. Step 4: Simplify right side
   109,367.65x = 7,021,855,241.89
5. Step 5: Solve for x
   x = 7,021,855,241.89/109,367.65
6. Step 6: Final answer
   x = 64,204.13