Finding the Fourth Proportional to 78,268.05, 108,009.99 and 42,458.04

Step by Step Solution

1. Step 1: Write the proportion equation
   78,268.05 : 108,009.99 = 42,458.04 : x
2. Step 2: Convert to fraction form
   78,268.05/108,009.99 = 42,458.04/x
3. Step 3: Cross multiply
   78,268.05x = 108,009.99 × 42,458.04
4. Step 4: Simplify right side
   78,268.05x = 4,585,892,475.82
5. Step 5: Solve for x
   x = 4,585,892,475.82/78,268.05
6. Step 6: Final answer
   x = 58,592.14