Finding the Fourth Proportional to 9,091.84, 12,547.20 and 5,365.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,091.84 : 12,547.20 = 5,365.76 : x
2. Step 2: Convert to fraction form
   9,091.84/12,547.20 = 5,365.76/x
3. Step 3: Cross multiply
   9,091.84x = 12,547.20 × 5,365.76
4. Step 4: Simplify right side
   9,091.84x = 67,325,263.87
5. Step 5: Solve for x
   x = 67,325,263.87/9,091.84
6. Step 6: Final answer
   x = 7,405.02