Finding the Fourth Proportional to 12,100.81, 18,152.33 and 4,705.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,100.81 : 18,152.33 = 4,705.82 : x
2. Step 2: Convert to fraction form
   12,100.81/18,152.33 = 4,705.82/x
3. Step 3: Cross multiply
   12,100.81x = 18,152.33 × 4,705.82
4. Step 4: Simplify right side
   12,100.81x = 85,421,654.71
5. Step 5: Solve for x
   x = 85,421,654.71/12,100.81
6. Step 6: Final answer
   x = 7,059.17