Finding the Fourth Proportional to 111,030.72, 152,995.68 and 79,131.84

Step by Step Solution

1. Step 1: Write the proportion equation
   111,030.72 : 152,995.68 = 79,131.84 : x
2. Step 2: Convert to fraction form
   111,030.72/152,995.68 = 79,131.84/x
3. Step 3: Cross multiply
   111,030.72x = 152,995.68 × 79,131.84
4. Step 4: Simplify right side
   111,030.72x = 12,106,829,670.45
5. Step 5: Solve for x
   x = 12,106,829,670.45/111,030.72
6. Step 6: Final answer
   x = 109,040.36