Finding the Fourth Proportional to 128,903.00, 193,363.81 and 53,947.72

Step by Step Solution

1. Step 1: Write the proportion equation
   128,903.00 : 193,363.81 = 53,947.72 : x
2. Step 2: Convert to fraction form
   128,903.00/193,363.81 = 53,947.72/x
3. Step 3: Cross multiply
   128,903.00x = 193,363.81 × 53,947.72
4. Step 4: Simplify right side
   128,903.00x = 10,431,536,786.85
5. Step 5: Solve for x
   x = 10,431,536,786.85/128,903.00
6. Step 6: Final answer
   x = 80,925.48