Finding the Fourth Proportional to 128,904.82, 193,159.52 and 53,984.00

Step by Step Solution

1. Step 1: Write the proportion equation
   128,904.82 : 193,159.52 = 53,984.00 : x
2. Step 2: Convert to fraction form
   128,904.82/193,159.52 = 53,984.00/x
3. Step 3: Cross multiply
   128,904.82x = 193,159.52 × 53,984.00
4. Step 4: Simplify right side
   128,904.82x = 10,427,523,943.10
5. Step 5: Solve for x
   x = 10,427,523,943.10/128,904.82
6. Step 6: Final answer
   x = 80,893.21