Finding the Fourth Proportional to 128,033.56, 191,941.89 and 53,106.94

Step by Step Solution

1. Step 1: Write the proportion equation
   128,033.56 : 191,941.89 = 53,106.94 : x
2. Step 2: Convert to fraction form
   128,033.56/191,941.89 = 53,106.94/x
3. Step 3: Cross multiply
   128,033.56x = 191,941.89 × 53,106.94
4. Step 4: Simplify right side
   128,033.56x = 10,193,446,476.49
5. Step 5: Solve for x
   x = 10,193,446,476.49/128,033.56
6. Step 6: Final answer
   x = 79,615.43