Finding the Fourth Proportional to 111,273.31, 153,553.94 and 65,332.18

Step by Step Solution

1. Step 1: Write the proportion equation
   111,273.31 : 153,553.94 = 65,332.18 : x
2. Step 2: Convert to fraction form
   111,273.31/153,553.94 = 65,332.18/x
3. Step 3: Cross multiply
   111,273.31x = 153,553.94 × 65,332.18
4. Step 4: Simplify right side
   111,273.31x = 10,032,014,065.88
5. Step 5: Solve for x
   x = 10,032,014,065.88/111,273.31
6. Step 6: Final answer
   x = 90,156.52