Finding the Fourth Proportional to 22,018.23, 30,385.15 and 12,587.00

Step by Step Solution

1. Step 1: Write the proportion equation
   22,018.23 : 30,385.15 = 12,587.00 : x
2. Step 2: Convert to fraction form
   22,018.23/30,385.15 = 12,587.00/x
3. Step 3: Cross multiply
   22,018.23x = 30,385.15 × 12,587.00
4. Step 4: Simplify right side
   22,018.23x = 382,457,699.66
5. Step 5: Solve for x
   x = 382,457,699.66/22,018.23
6. Step 6: Final answer
   x = 17,370.05