Finding the Fourth Proportional to 89,052.24, 123,128.40 and 77,842.08

Step by Step Solution

1. Step 1: Write the proportion equation
   89,052.24 : 123,128.40 = 77,842.08 : x
2. Step 2: Convert to fraction form
   89,052.24/123,128.40 = 77,842.08/x
3. Step 3: Cross multiply
   89,052.24x = 123,128.40 × 77,842.08
4. Step 4: Simplify right side
   89,052.24x = 9,584,570,763.07
5. Step 5: Solve for x
   x = 9,584,570,763.07/89,052.24
6. Step 6: Final answer
   x = 107,628.63