Finding the Fourth Proportional to 78,796.60, 108,735.51 and 42,984.47

Step by Step Solution

1. Step 1: Write the proportion equation
   78,796.60 : 108,735.51 = 42,984.47 : x
2. Step 2: Convert to fraction form
   78,796.60/108,735.51 = 42,984.47/x
3. Step 3: Cross multiply
   78,796.60x = 108,735.51 × 42,984.47
4. Step 4: Simplify right side
   78,796.60x = 4,673,938,700.56
5. Step 5: Solve for x
   x = 4,673,938,700.56/78,796.60
6. Step 6: Final answer
   x = 59,316.50