Finding the Fourth Proportional to 10,121, 15,189.34 and 7,022.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,121 : 15,189.34 = 7,022.76 : x
2. Step 2: Convert to fraction form
   10,121/15,189.34 = 7,022.76/x
3. Step 3: Cross multiply
   10,121x = 15,189.34 × 7,022.76
4. Step 4: Simplify right side
   10,121x = 106,671,089.38
5. Step 5: Solve for x
   x = 106,671,089.38/10,121
6. Step 6: Final answer
   x = 10,539.58