Finding the Fourth Proportional to 110,633.76, 152,686.43 and 67,638.48

Step by Step Solution

1. Step 1: Write the proportion equation
   110,633.76 : 152,686.43 = 67,638.48 : x
2. Step 2: Convert to fraction form
   110,633.76/152,686.43 = 67,638.48/x
3. Step 3: Cross multiply
   110,633.76x = 152,686.43 × 67,638.48
4. Step 4: Simplify right side
   110,633.76x = 10,327,478,123.97
5. Step 5: Solve for x
   x = 10,327,478,123.97/110,633.76
6. Step 6: Final answer
   x = 93,348.34