Finding the Fourth Proportional to 70,594.58, 105,891.15 and 18,003.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,594.58 : 105,891.15 = 18,003.50 : x
2. Step 2: Convert to fraction form
   70,594.58/105,891.15 = 18,003.50/x
3. Step 3: Cross multiply
   70,594.58x = 105,891.15 × 18,003.50
4. Step 4: Simplify right side
   70,594.58x = 1,906,411,319.03
5. Step 5: Solve for x
   x = 1,906,411,319.03/70,594.58
6. Step 6: Final answer
   x = 27,005.07