Finding the Fourth Proportional to 34,155.32, 51,231.12 and 13,105.46

Step by Step Solution

1. Step 1: Write the proportion equation
   34,155.32 : 51,231.12 = 13,105.46 : x
2. Step 2: Convert to fraction form
   34,155.32/51,231.12 = 13,105.46/x
3. Step 3: Cross multiply
   34,155.32x = 51,231.12 × 13,105.46
4. Step 4: Simplify right side
   34,155.32x = 671,407,393.92
5. Step 5: Solve for x
   x = 671,407,393.92/34,155.32
6. Step 6: Final answer
   x = 19,657.48