Finding the Fourth Proportional to 52,091.28, 78,149.76 and 14,651.28

Step by Step Solution

1. Step 1: Write the proportion equation
   52,091.28 : 78,149.76 = 14,651.28 : x
2. Step 2: Convert to fraction form
   52,091.28/78,149.76 = 14,651.28/x
3. Step 3: Cross multiply
   52,091.28x = 78,149.76 × 14,651.28
4. Step 4: Simplify right side
   52,091.28x = 1,144,994,015.69
5. Step 5: Solve for x
   x = 1,144,994,015.69/52,091.28
6. Step 6: Final answer
   x = 21,980.53