Finding the Fourth Proportional to 111,880.08, 167,820.18 and 76,713.12

Step by Step Solution

1. Step 1: Write the proportion equation
   111,880.08 : 167,820.18 = 76,713.12 : x
2. Step 2: Convert to fraction form
   111,880.08/167,820.18 = 76,713.12/x
3. Step 3: Cross multiply
   111,880.08x = 167,820.18 × 76,713.12
4. Step 4: Simplify right side
   111,880.08x = 12,874,009,606.76
5. Step 5: Solve for x
   x = 12,874,009,606.76/111,880.08
6. Step 6: Final answer
   x = 115,069.72