Finding the Fourth Proportional to 78,646.35, 108,532.13 and 42,836.25

Step by Step Solution

1. Step 1: Write the proportion equation
   78,646.35 : 108,532.13 = 42,836.25 : x
2. Step 2: Convert to fraction form
   78,646.35/108,532.13 = 42,836.25/x
3. Step 3: Cross multiply
   78,646.35x = 108,532.13 × 42,836.25
4. Step 4: Simplify right side
   78,646.35x = 4,649,109,453.71
5. Step 5: Solve for x
   x = 4,649,109,453.71/78,646.35
6. Step 6: Final answer
   x = 59,114.12