Finding the Fourth Proportional to 146,015.50, 201,501.39 and 78,947.50

Step by Step Solution

1. Step 1: Write the proportion equation
   146,015.50 : 201,501.39 = 78,947.50 : x
2. Step 2: Convert to fraction form
   146,015.50/201,501.39 = 78,947.50/x
3. Step 3: Cross multiply
   146,015.50x = 201,501.39 × 78,947.50
4. Step 4: Simplify right side
   146,015.50x = 15,908,030,987.03
5. Step 5: Solve for x
   x = 15,908,030,987.03/146,015.50
6. Step 6: Final answer
   x = 108,947.55