Finding the Fourth Proportional to 128,333.83, 177,104.43 and 70,974.88

Step by Step Solution

1. Step 1: Write the proportion equation
   128,333.83 : 177,104.43 = 70,974.88 : x
2. Step 2: Convert to fraction form
   128,333.83/177,104.43 = 70,974.88/x
3. Step 3: Cross multiply
   128,333.83x = 177,104.43 × 70,974.88
4. Step 4: Simplify right side
   128,333.83x = 12,569,965,666.72
5. Step 5: Solve for x
   x = 12,569,965,666.72/128,333.83
6. Step 6: Final answer
   x = 97,947.41