Finding the Fourth Proportional to 108,787.90, 163,069.59 and 45,644.69

Step by Step Solution

1. Step 1: Write the proportion equation
   108,787.90 : 163,069.59 = 45,644.69 : x
2. Step 2: Convert to fraction form
   108,787.90/163,069.59 = 45,644.69/x
3. Step 3: Cross multiply
   108,787.90x = 163,069.59 × 45,644.69
4. Step 4: Simplify right side
   108,787.90x = 7,443,260,883.98
5. Step 5: Solve for x
   x = 7,443,260,883.98/108,787.90
6. Step 6: Final answer
   x = 68,419.93