Finding the Fourth Proportional to 17,906.31, 26,852.56 and 7,910.53

Step by Step Solution

1. Step 1: Write the proportion equation
   17,906.31 : 26,852.56 = 7,910.53 : x
2. Step 2: Convert to fraction form
   17,906.31/26,852.56 = 7,910.53/x
3. Step 3: Cross multiply
   17,906.31x = 26,852.56 × 7,910.53
4. Step 4: Simplify right side
   17,906.31x = 212,417,894.55
5. Step 5: Solve for x
   x = 212,417,894.55/17,906.31
6. Step 6: Final answer
   x = 11,862.74