Finding the Fourth Proportional to 13,813.34, 19,062.78 and 7,526.12

Step by Step Solution

1. Step 1: Write the proportion equation
   13,813.34 : 19,062.78 = 7,526.12 : x
2. Step 2: Convert to fraction form
   13,813.34/19,062.78 = 7,526.12/x
3. Step 3: Cross multiply
   13,813.34x = 19,062.78 × 7,526.12
4. Step 4: Simplify right side
   13,813.34x = 143,468,769.81
5. Step 5: Solve for x
   x = 143,468,769.81/13,813.34
6. Step 6: Final answer
   x = 10,386.25