Finding the Fourth Proportional to 12,100.13, 18,151.31 and 4,705.14

Step by Step Solution

1. Step 1: Write the proportion equation
   12,100.13 : 18,151.31 = 4,705.14 : x
2. Step 2: Convert to fraction form
   12,100.13/18,151.31 = 4,705.14/x
3. Step 3: Cross multiply
   12,100.13x = 18,151.31 × 4,705.14
4. Step 4: Simplify right side
   12,100.13x = 85,404,534.56
5. Step 5: Solve for x
   x = 85,404,534.56/12,100.13
6. Step 6: Final answer
   x = 7,058.15