Finding the Fourth Proportional to 111,440.93, 153,608.72 and 91,262.21

Step by Step Solution

1. Step 1: Write the proportion equation
   111,440.93 : 153,608.72 = 91,262.21 : x
2. Step 2: Convert to fraction form
   111,440.93/153,608.72 = 91,262.21/x
3. Step 3: Cross multiply
   111,440.93x = 153,608.72 × 91,262.21
4. Step 4: Simplify right side
   111,440.93x = 14,018,670,038.12
5. Step 5: Solve for x
   x = 14,018,670,038.12/111,440.93
6. Step 6: Final answer
   x = 125,794.63