Finding the Fourth Proportional to 139,038.22, 191,770.82 and 91,274.14

Step by Step Solution

1. Step 1: Write the proportion equation
   139,038.22 : 191,770.82 = 91,274.14 : x
2. Step 2: Convert to fraction form
   139,038.22/191,770.82 = 91,274.14/x
3. Step 3: Cross multiply
   139,038.22x = 191,770.82 × 91,274.14
4. Step 4: Simplify right side
   139,038.22x = 17,503,715,713.74
5. Step 5: Solve for x
   x = 17,503,715,713.74/139,038.22
6. Step 6: Final answer
   x = 125,891.40