Finding the Fourth Proportional to 78,947.10, 109,019.76 and 50,702.00

Step by Step Solution

1. Step 1: Write the proportion equation
   78,947.10 : 109,019.76 = 50,702.00 : x
2. Step 2: Convert to fraction form
   78,947.10/109,019.76 = 50,702.00/x
3. Step 3: Cross multiply
   78,947.10x = 109,019.76 × 50,702.00
4. Step 4: Simplify right side
   78,947.10x = 5,527,519,072.91
5. Step 5: Solve for x
   x = 5,527,519,072.91/78,947.10
6. Step 6: Final answer
   x = 70,015.48