Finding the Fourth Proportional to 19,925.31, 27,495.83 and 10,971.11

Step by Step Solution

1. Step 1: Write the proportion equation
   19,925.31 : 27,495.83 = 10,971.11 : x
2. Step 2: Convert to fraction form
   19,925.31/27,495.83 = 10,971.11/x
3. Step 3: Cross multiply
   19,925.31x = 27,495.83 × 10,971.11
4. Step 4: Simplify right side
   19,925.31x = 301,659,775.47
5. Step 5: Solve for x
   x = 301,659,775.47/19,925.31
6. Step 6: Final answer
   x = 15,139.53