Finding the Fourth Proportional to 111,597.89, 154,031.63 and 63,878.76

Step by Step Solution

1. Step 1: Write the proportion equation
   111,597.89 : 154,031.63 = 63,878.76 : x
2. Step 2: Convert to fraction form
   111,597.89/154,031.63 = 63,878.76/x
3. Step 3: Cross multiply
   111,597.89x = 154,031.63 × 63,878.76
4. Step 4: Simplify right side
   111,597.89x = 9,839,349,205.79
5. Step 5: Solve for x
   x = 9,839,349,205.79/111,597.89
6. Step 6: Final answer
   x = 88,167.88