Finding the Fourth Proportional to 111,274.31, 153,555.32 and 65,333.18

Step by Step Solution

1. Step 1: Write the proportion equation
   111,274.31 : 153,555.32 = 65,333.18 : x
2. Step 2: Convert to fraction form
   111,274.31/153,555.32 = 65,333.18/x
3. Step 3: Cross multiply
   111,274.31x = 153,555.32 × 65,333.18
4. Step 4: Simplify right side
   111,274.31x = 10,032,257,361.52
5. Step 5: Solve for x
   x = 10,032,257,361.52/111,274.31
6. Step 6: Final answer
   x = 90,157.89