Finding the Fourth Proportional to 78,426.96, 108,185.40 and 48,191.28

Step by Step Solution

1. Step 1: Write the proportion equation
   78,426.96 : 108,185.40 = 48,191.28 : x
2. Step 2: Convert to fraction form
   78,426.96/108,185.40 = 48,191.28/x
3. Step 3: Cross multiply
   78,426.96x = 108,185.40 × 48,191.28
4. Step 4: Simplify right side
   78,426.96x = 5,213,592,903.31
5. Step 5: Solve for x
   x = 5,213,592,903.31/78,426.96
6. Step 6: Final answer
   x = 66,477.05