Finding the Fourth Proportional to 9,112.46, 13,670.13 and 3,191.00

Step by Step Solution

1. Step 1: Write the proportion equation
   9,112.46 : 13,670.13 = 3,191.00 : x
2. Step 2: Convert to fraction form
   9,112.46/13,670.13 = 3,191.00/x
3. Step 3: Cross multiply
   9,112.46x = 13,670.13 × 3,191.00
4. Step 4: Simplify right side
   9,112.46x = 43,621,316.48
5. Step 5: Solve for x
   x = 43,621,316.48/9,112.46
6. Step 6: Final answer
   x = 4,787.00