Finding the Fourth Proportional to 111,348.88, 153,667.74 and 66,053.68

Step by Step Solution

1. Step 1: Write the proportion equation
   111,348.88 : 153,667.74 = 66,053.68 : x
2. Step 2: Convert to fraction form
   111,348.88/153,667.74 = 66,053.68/x
3. Step 3: Cross multiply
   111,348.88x = 153,667.74 × 66,053.68
4. Step 4: Simplify right side
   111,348.88x = 10,150,319,724.28
5. Step 5: Solve for x
   x = 10,150,319,724.28/111,348.88
6. Step 6: Final answer
   x = 91,157.81