Finding the Fourth Proportional to 111,689.84, 167,294.18 and 52,436.72

Step by Step Solution

1. Step 1: Write the proportion equation
   111,689.84 : 167,294.18 = 52,436.72 : x
2. Step 2: Convert to fraction form
   111,689.84/167,294.18 = 52,436.72/x
3. Step 3: Cross multiply
   111,689.84x = 167,294.18 × 52,436.72
4. Step 4: Simplify right side
   111,689.84x = 8,772,358,074.29
5. Step 5: Solve for x
   x = 8,772,358,074.29/111,689.84
6. Step 6: Final answer
   x = 78,542.13