Finding the Fourth Proportional to 109,366.10, 164,043.67 and 42,818.42

Step by Step Solution

1. Step 1: Write the proportion equation
   109,366.10 : 164,043.67 = 42,818.42 : x
2. Step 2: Convert to fraction form
   109,366.10/164,043.67 = 42,818.42/x
3. Step 3: Cross multiply
   109,366.10x = 164,043.67 × 42,818.42
4. Step 4: Simplify right side
   109,366.10x = 7,024,089,940.18
5. Step 5: Solve for x
   x = 7,024,089,940.18/109,366.10
6. Step 6: Final answer
   x = 64,225.48