Finding the Fourth Proportional to 136,003.72, 187,685.94 and 74,749.25

Step by Step Solution

1. Step 1: Write the proportion equation
   136,003.72 : 187,685.94 = 74,749.25 : x
2. Step 2: Convert to fraction form
   136,003.72/187,685.94 = 74,749.25/x
3. Step 3: Cross multiply
   136,003.72x = 187,685.94 × 74,749.25
4. Step 4: Simplify right side
   136,003.72x = 14,029,383,250.55
5. Step 5: Solve for x
   x = 14,029,383,250.55/136,003.72
6. Step 6: Final answer
   x = 103,154.41