Finding the Fourth Proportional to 9,091.82, 12,547.70 and 5,112.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,091.82 : 12,547.70 = 5,112.84 : x
2. Step 2: Convert to fraction form
   9,091.82/12,547.70 = 5,112.84/x
3. Step 3: Cross multiply
   9,091.82x = 12,547.70 × 5,112.84
4. Step 4: Simplify right side
   9,091.82x = 64,154,382.47
5. Step 5: Solve for x
   x = 64,154,382.47/9,091.82
6. Step 6: Final answer
   x = 7,056.28