Finding the Fourth Proportional to 109,504.89, 164,275.08 and 42,908.91

Step by Step Solution

1. Step 1: Write the proportion equation
   109,504.89 : 164,275.08 = 42,908.91 : x
2. Step 2: Convert to fraction form
   109,504.89/164,275.08 = 42,908.91/x
3. Step 3: Cross multiply
   109,504.89x = 164,275.08 × 42,908.91
4. Step 4: Simplify right side
   109,504.89x = 7,048,864,622.96
5. Step 5: Solve for x
   x = 7,048,864,622.96/109,504.89
6. Step 6: Final answer
   x = 64,370.32