Finding the Fourth Proportional to 99,223.98, 136,928.54 and 53,901.59

Step by Step Solution

1. Step 1: Write the proportion equation
   99,223.98 : 136,928.54 = 53,901.59 : x
2. Step 2: Convert to fraction form
   99,223.98/136,928.54 = 53,901.59/x
3. Step 3: Cross multiply
   99,223.98x = 136,928.54 × 53,901.59
4. Step 4: Simplify right side
   99,223.98x = 7,380,666,022.38
5. Step 5: Solve for x
   x = 7,380,666,022.38/99,223.98
6. Step 6: Final answer
   x = 74,383.89