Finding the Fourth Proportional to 77,760.29, 116,645.69 and 26,448.06

Step by Step Solution

1. Step 1: Write the proportion equation
   77,760.29 : 116,645.69 = 26,448.06 : x
2. Step 2: Convert to fraction form
   77,760.29/116,645.69 = 26,448.06/x
3. Step 3: Cross multiply
   77,760.29x = 116,645.69 × 26,448.06
4. Step 4: Simplify right side
   77,760.29x = 3,085,052,075.62
5. Step 5: Solve for x
   x = 3,085,052,075.62/77,760.29
6. Step 6: Final answer
   x = 39,673.88