Finding the Fourth Proportional to 78,550.51, 108,402.03 and 42,742.84

Step by Step Solution

1. Step 1: Write the proportion equation
   78,550.51 : 108,402.03 = 42,742.84 : x
2. Step 2: Convert to fraction form
   78,550.51/108,402.03 = 42,742.84/x
3. Step 3: Cross multiply
   78,550.51x = 108,402.03 × 42,742.84
4. Step 4: Simplify right side
   78,550.51x = 4,633,410,623.97
5. Step 5: Solve for x
   x = 4,633,410,623.97/78,550.51
6. Step 6: Final answer
   x = 58,986.38