Finding the Fourth Proportional to 109,515.81, 164,342.82 and 42,954.17

Step by Step Solution

1. Step 1: Write the proportion equation
   109,515.81 : 164,342.82 = 42,954.17 : x
2. Step 2: Convert to fraction form
   109,515.81/164,342.82 = 42,954.17/x
3. Step 3: Cross multiply
   109,515.81x = 164,342.82 × 42,954.17
4. Step 4: Simplify right side
   109,515.81x = 7,059,208,606.85
5. Step 5: Solve for x
   x = 7,059,208,606.85/109,515.81
6. Step 6: Final answer
   x = 64,458.35