Finding the Fourth Proportional to 91,223.27, 136,878.23 and 63,186.47

Step by Step Solution

1. Step 1: Write the proportion equation
   91,223.27 : 136,878.23 = 63,186.47 : x
2. Step 2: Convert to fraction form
   91,223.27/136,878.23 = 63,186.47/x
3. Step 3: Cross multiply
   91,223.27x = 136,878.23 × 63,186.47
4. Step 4: Simplify right side
   91,223.27x = 8,648,852,173.55
5. Step 5: Solve for x
   x = 8,648,852,173.55/91,223.27
6. Step 6: Final answer
   x = 94,809.71