Finding the Fourth Proportional to 93,111.48, 128,494.31 and 50,670

Step by Step Solution

1. Step 1: Write the proportion equation
   93,111.48 : 128,494.31 = 50,670 : x
2. Step 2: Convert to fraction form
   93,111.48/128,494.31 = 50,670/x
3. Step 3: Cross multiply
   93,111.48x = 128,494.31 × 50,670
4. Step 4: Simplify right side
   93,111.48x = 6,510,806,434.35
5. Step 5: Solve for x
   x = 6,510,806,434.35/93,111.48
6. Step 6: Final answer
   x = 69,924.85