Finding the Fourth Proportional to 30,801.78, 42,506.40 and 17,373.00

Step by Step Solution

1. Step 1: Write the proportion equation
   30,801.78 : 42,506.40 = 17,373.00 : x
2. Step 2: Convert to fraction form
   30,801.78/42,506.40 = 17,373.00/x
3. Step 3: Cross multiply
   30,801.78x = 42,506.40 × 17,373.00
4. Step 4: Simplify right side
   30,801.78x = 738,463,592.95
5. Step 5: Solve for x
   x = 738,463,592.95/30,801.78
6. Step 6: Final answer
   x = 23,974.70