Finding the Fourth Proportional to 93,238.17, 128,685.33 and 54,995.37

Step by Step Solution

1. Step 1: Write the proportion equation
   93,238.17 : 128,685.33 = 54,995.37 : x
2. Step 2: Convert to fraction form
   93,238.17/128,685.33 = 54,995.37/x
3. Step 3: Cross multiply
   93,238.17x = 128,685.33 × 54,995.37
4. Step 4: Simplify right side
   93,238.17x = 7,077,097,336.92
5. Step 5: Solve for x
   x = 7,077,097,336.92/93,238.17
6. Step 6: Final answer
   x = 75,903.43