Finding the Fourth Proportional to 78,494.74, 108,323.25 and 42,685.14

Step by Step Solution

1. Step 1: Write the proportion equation
   78,494.74 : 108,323.25 = 42,685.14 : x
2. Step 2: Convert to fraction form
   78,494.74/108,323.25 = 42,685.14/x
3. Step 3: Cross multiply
   78,494.74x = 108,323.25 × 42,685.14
4. Step 4: Simplify right side
   78,494.74x = 4,623,793,091.51
5. Step 5: Solve for x
   x = 4,623,793,091.51/78,494.74
6. Step 6: Final answer
   x = 58,905.77