Finding the Fourth Proportional to 93,175.31, 128,573.83 and 52,890.77

Step by Step Solution

1. Step 1: Write the proportion equation
   93,175.31 : 128,573.83 = 52,890.77 : x
2. Step 2: Convert to fraction form
   93,175.31/128,573.83 = 52,890.77/x
3. Step 3: Cross multiply
   93,175.31x = 128,573.83 × 52,890.77
4. Step 4: Simplify right side
   93,175.31x = 6,800,369,258.10
5. Step 5: Solve for x
   x = 6,800,369,258.10/93,175.31
6. Step 6: Final answer
   x = 72,984.67