Finding the Fourth Proportional to 108,958.30, 163,405.05 and 42,360.10

Step by Step Solution

1. Step 1: Write the proportion equation
   108,958.30 : 163,405.05 = 42,360.10 : x
2. Step 2: Convert to fraction form
   108,958.30/163,405.05 = 42,360.10/x
3. Step 3: Cross multiply
   108,958.30x = 163,405.05 × 42,360.10
4. Step 4: Simplify right side
   108,958.30x = 6,921,854,258.51
5. Step 5: Solve for x
   x = 6,921,854,258.51/108,958.30
6. Step 6: Final answer
   x = 63,527.55