Finding the Fourth Proportional to 111,071.07, 153,118.64 and 79,184.61

Step by Step Solution

1. Step 1: Write the proportion equation
   111,071.07 : 153,118.64 = 79,184.61 : x
2. Step 2: Convert to fraction form
   111,071.07/153,118.64 = 79,184.61/x
3. Step 3: Cross multiply
   111,071.07x = 153,118.64 × 79,184.61
4. Step 4: Simplify right side
   111,071.07x = 12,124,639,026.54
5. Step 5: Solve for x
   x = 12,124,639,026.54/111,071.07
6. Step 6: Final answer
   x = 109,161.09