Finding the Fourth Proportional to 137,613.18, 189,877.32 and 89,936.58

Step by Step Solution

1. Step 1: Write the proportion equation
   137,613.18 : 189,877.32 = 89,936.58 : x
2. Step 2: Convert to fraction form
   137,613.18/189,877.32 = 89,936.58/x
3. Step 3: Cross multiply
   137,613.18x = 189,877.32 × 89,936.58
4. Step 4: Simplify right side
   137,613.18x = 17,076,916,780.37
5. Step 5: Solve for x
   x = 17,076,916,780.37/137,613.18
6. Step 6: Final answer
   x = 124,093.61