Finding the Fourth Proportional to 10,978.38, 16,528.34 and 7,538.22

Step by Step Solution

1. Step 1: Write the proportion equation
   10,978.38 : 16,528.34 = 7,538.22 : x
2. Step 2: Convert to fraction form
   10,978.38/16,528.34 = 7,538.22/x
3. Step 3: Cross multiply
   10,978.38x = 16,528.34 × 7,538.22
4. Step 4: Simplify right side
   10,978.38x = 124,594,282.00
5. Step 5: Solve for x
   x = 124,594,282.00/10,978.38
6. Step 6: Final answer
   x = 11,349.06