Finding the Fourth Proportional to 109,513.76, 164,270.16 and 42,906.85

Step by Step Solution

1. Step 1: Write the proportion equation
   109,513.76 : 164,270.16 = 42,906.85 : x
2. Step 2: Convert to fraction form
   109,513.76/164,270.16 = 42,906.85/x
3. Step 3: Cross multiply
   109,513.76x = 164,270.16 × 42,906.85
4. Step 4: Simplify right side
   109,513.76x = 7,048,314,703.92
5. Step 5: Solve for x
   x = 7,048,314,703.92/109,513.76
6. Step 6: Final answer
   x = 64,360.09