Finding the Fourth Proportional to 9,061.84, 12,513.78 and 8,570.92

Step by Step Solution

1. Step 1: Write the proportion equation
   9,061.84 : 12,513.78 = 8,570.92 : x
2. Step 2: Convert to fraction form
   9,061.84/12,513.78 = 8,570.92/x
3. Step 3: Cross multiply
   9,061.84x = 12,513.78 × 8,570.92
4. Step 4: Simplify right side
   9,061.84x = 107,254,607.28
5. Step 5: Solve for x
   x = 107,254,607.28/9,061.84
6. Step 6: Final answer
   x = 11,835.85