Finding the Fourth Proportional to 95,013.74, 142,741.20 and 89,912

Step by Step Solution

1. Step 1: Write the proportion equation
   95,013.74 : 142,741.20 = 89,912 : x
2. Step 2: Convert to fraction form
   95,013.74/142,741.20 = 89,912/x
3. Step 3: Cross multiply
   95,013.74x = 142,741.20 × 89,912
4. Step 4: Simplify right side
   95,013.74x = 12,834,146,774.40
5. Step 5: Solve for x
   x = 12,834,146,774.40/95,013.74
6. Step 6: Final answer
   x = 135,076.75