Finding the Fourth Proportional to 78,948.86, 109,022.16 and 50,703.75

Step by Step Solution

1. Step 1: Write the proportion equation
   78,948.86 : 109,022.16 = 50,703.75 : x
2. Step 2: Convert to fraction form
   78,948.86/109,022.16 = 50,703.75/x
3. Step 3: Cross multiply
   78,948.86x = 109,022.16 × 50,703.75
4. Step 4: Simplify right side
   78,948.86x = 5,527,832,345.10
5. Step 5: Solve for x
   x = 5,527,832,345.10/78,948.86
6. Step 6: Final answer
   x = 70,017.89