Finding the Fourth Proportional to 9,907.50, 14,842.71 and 4,971.36

Step by Step Solution

1. Step 1: Write the proportion equation
   9,907.50 : 14,842.71 = 4,971.36 : x
2. Step 2: Convert to fraction form
   9,907.50/14,842.71 = 4,971.36/x
3. Step 3: Cross multiply
   9,907.50x = 14,842.71 × 4,971.36
4. Step 4: Simplify right side
   9,907.50x = 73,788,454.79
5. Step 5: Solve for x
   x = 73,788,454.79/9,907.50
6. Step 6: Final answer
   x = 7,447.74