Finding the Fourth Proportional to 9,471.74, 13,071.78 and 7,897.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,471.74 : 13,071.78 = 7,897.10 : x
2. Step 2: Convert to fraction form
   9,471.74/13,071.78 = 7,897.10/x
3. Step 3: Cross multiply
   9,471.74x = 13,071.78 × 7,897.10
4. Step 4: Simplify right side
   9,471.74x = 103,229,088.48
5. Step 5: Solve for x
   x = 103,229,088.48/9,471.74
6. Step 6: Final answer
   x = 10,898.65