Finding the Fourth Proportional to 93,171.96, 128,582.45 and 54,953.91

Step by Step Solution

1. Step 1: Write the proportion equation
   93,171.96 : 128,582.45 = 54,953.91 : x
2. Step 2: Convert to fraction form
   93,171.96/128,582.45 = 54,953.91/x
3. Step 3: Cross multiply
   93,171.96x = 128,582.45 × 54,953.91
4. Step 4: Simplify right side
   93,171.96x = 7,066,108,384.88
5. Step 5: Solve for x
   x = 7,066,108,384.88/93,171.96
6. Step 6: Final answer
   x = 75,839.43