Finding the Fourth Proportional to 116,278.50, 174,443.75 and 42,406.50

Step by Step Solution

1. Step 1: Write the proportion equation
   116,278.50 : 174,443.75 = 42,406.50 : x
2. Step 2: Convert to fraction form
   116,278.50/174,443.75 = 42,406.50/x
3. Step 3: Cross multiply
   116,278.50x = 174,443.75 × 42,406.50
4. Step 4: Simplify right side
   116,278.50x = 7,397,548,884.38
5. Step 5: Solve for x
   x = 7,397,548,884.38/116,278.50
6. Step 6: Final answer
   x = 63,619.23