Finding the Fourth Proportional to 13,834.35, 19,091.84 and 7,547.31

Step by Step Solution

1. Step 1: Write the proportion equation
   13,834.35 : 19,091.84 = 7,547.31 : x
2. Step 2: Convert to fraction form
   13,834.35/19,091.84 = 7,547.31/x
3. Step 3: Cross multiply
   13,834.35x = 19,091.84 × 7,547.31
4. Step 4: Simplify right side
   13,834.35x = 144,091,997.21
5. Step 5: Solve for x
   x = 144,091,997.21/13,834.35
6. Step 6: Final answer
   x = 10,415.52