Finding the Fourth Proportional to 89,112.42, 133,877.68 and 84,068.55

Step by Step Solution

1. Step 1: Write the proportion equation
   89,112.42 : 133,877.68 = 84,068.55 : x
2. Step 2: Convert to fraction form
   89,112.42/133,877.68 = 84,068.55/x
3. Step 3: Cross multiply
   89,112.42x = 133,877.68 × 84,068.55
4. Step 4: Simplify right side
   89,112.42x = 11,254,902,434.96
5. Step 5: Solve for x
   x = 11,254,902,434.96/89,112.42
6. Step 6: Final answer
   x = 126,300.04