Finding the Fourth Proportional to 78,317.33, 108,078.01 and 42,507.34

Step by Step Solution

1. Step 1: Write the proportion equation
   78,317.33 : 108,078.01 = 42,507.34 : x
2. Step 2: Convert to fraction form
   78,317.33/108,078.01 = 42,507.34/x
3. Step 3: Cross multiply
   78,317.33x = 108,078.01 × 42,507.34
4. Step 4: Simplify right side
   78,317.33x = 4,594,108,341.13
5. Step 5: Solve for x
   x = 4,594,108,341.13/78,317.33
6. Step 6: Final answer
   x = 58,660.18