Finding the Fourth Proportional to 88,995.84, 122,820.48 and 57,174.72

Step by Step Solution

1. Step 1: Write the proportion equation
   88,995.84 : 122,820.48 = 57,174.72 : x
2. Step 2: Convert to fraction form
   88,995.84/122,820.48 = 57,174.72/x
3. Step 3: Cross multiply
   88,995.84x = 122,820.48 × 57,174.72
4. Step 4: Simplify right side
   88,995.84x = 7,022,226,554.27
5. Step 5: Solve for x
   x = 7,022,226,554.27/88,995.84
6. Step 6: Final answer
   x = 78,905.11