Finding the Fourth Proportional to 91,478.88, 137,076.61 and 63,453.42

Step by Step Solution

1. Step 1: Write the proportion equation
   91,478.88 : 137,076.61 = 63,453.42 : x
2. Step 2: Convert to fraction form
   91,478.88/137,076.61 = 63,453.42/x
3. Step 3: Cross multiply
   91,478.88x = 137,076.61 × 63,453.42
4. Step 4: Simplify right side
   91,478.88x = 8,697,979,706.51
5. Step 5: Solve for x
   x = 8,697,979,706.51/91,478.88
6. Step 6: Final answer
   x = 95,081.83