Finding the Fourth Proportional to 8,999.06, 13,501.83 and 3,156.53

Step by Step Solution

1. Step 1: Write the proportion equation
   8,999.06 : 13,501.83 = 3,156.53 : x
2. Step 2: Convert to fraction form
   8,999.06/13,501.83 = 3,156.53/x
3. Step 3: Cross multiply
   8,999.06x = 13,501.83 × 3,156.53
4. Step 4: Simplify right side
   8,999.06x = 42,618,931.45
5. Step 5: Solve for x
   x = 42,618,931.45/8,999.06
6. Step 6: Final answer
   x = 4,735.93