Finding the Fourth Proportional to 93,167.52, 128,603.56 and 55,440.96

Step by Step Solution

1. Step 1: Write the proportion equation
   93,167.52 : 128,603.56 = 55,440.96 : x
2. Step 2: Convert to fraction form
   93,167.52/128,603.56 = 55,440.96/x
3. Step 3: Cross multiply
   93,167.52x = 128,603.56 × 55,440.96
4. Step 4: Simplify right side
   93,167.52x = 7,129,904,825.82
5. Step 5: Solve for x
   x = 7,129,904,825.82/93,167.52
6. Step 6: Final answer
   x = 76,527.79