Finding the Fourth Proportional to 78,645.06, 108,532.71 and 42,836.58

Step by Step Solution

1. Step 1: Write the proportion equation
   78,645.06 : 108,532.71 = 42,836.58 : x
2. Step 2: Convert to fraction form
   78,645.06/108,532.71 = 42,836.58/x
3. Step 3: Cross multiply
   78,645.06x = 108,532.71 × 42,836.58
4. Step 4: Simplify right side
   78,645.06x = 4,649,170,114.53
5. Step 5: Solve for x
   x = 4,649,170,114.53/78,645.06
6. Step 6: Final answer
   x = 59,115.86