Finding the Fourth Proportional to 78,683.61, 108,584.63 and 42,873.63

Step by Step Solution

1. Step 1: Write the proportion equation
   78,683.61 : 108,584.63 = 42,873.63 : x
2. Step 2: Convert to fraction form
   78,683.61/108,584.63 = 42,873.63/x
3. Step 3: Cross multiply
   78,683.61x = 108,584.63 × 42,873.63
4. Step 4: Simplify right side
   78,683.61x = 4,655,417,250.31
5. Step 5: Solve for x
   x = 4,655,417,250.31/78,683.61
6. Step 6: Final answer
   x = 59,166.29