Finding the Fourth Proportional to 139,366.01, 192,404.88 and 91,757.75

Step by Step Solution

1. Step 1: Write the proportion equation
   139,366.01 : 192,404.88 = 91,757.75 : x
2. Step 2: Convert to fraction form
   139,366.01/192,404.88 = 91,757.75/x
3. Step 3: Cross multiply
   139,366.01x = 192,404.88 × 91,757.75
4. Step 4: Simplify right side
   139,366.01x = 17,654,638,877.82
5. Step 5: Solve for x
   x = 17,654,638,877.82/139,366.01
6. Step 6: Final answer
   x = 126,678.23