Finding the Fourth Proportional to 136,131.53, 187,865.82 and 75,704.72

Step by Step Solution

1. Step 1: Write the proportion equation
   136,131.53 : 187,865.82 = 75,704.72 : x
2. Step 2: Convert to fraction form
   136,131.53/187,865.82 = 75,704.72/x
3. Step 3: Cross multiply
   136,131.53x = 187,865.82 × 75,704.72
4. Step 4: Simplify right side
   136,131.53x = 14,222,328,361.34
5. Step 5: Solve for x
   x = 14,222,328,361.34/136,131.53
6. Step 6: Final answer
   x = 104,474.91