Finding the Fourth Proportional to 25,090.46, 34,630.71 and 18,385.82

Step by Step Solution

1. Step 1: Write the proportion equation
   25,090.46 : 34,630.71 = 18,385.82 : x
2. Step 2: Convert to fraction form
   25,090.46/34,630.71 = 18,385.82/x
3. Step 3: Cross multiply
   25,090.46x = 34,630.71 × 18,385.82
4. Step 4: Simplify right side
   25,090.46x = 636,714,000.53
5. Step 5: Solve for x
   x = 636,714,000.53/25,090.46
6. Step 6: Final answer
   x = 25,376.74