Finding the Fourth Proportional to 141,796.67, 195,688.89 and 78,134.47

Step by Step Solution

1. Step 1: Write the proportion equation
   141,796.67 : 195,688.89 = 78,134.47 : x
2. Step 2: Convert to fraction form
   141,796.67/195,688.89 = 78,134.47/x
3. Step 3: Cross multiply
   141,796.67x = 195,688.89 × 78,134.47
4. Step 4: Simplify right side
   141,796.67x = 15,290,046,858.47
5. Step 5: Solve for x
   x = 15,290,046,858.47/141,796.67
6. Step 6: Final answer
   x = 107,830.79