Finding the Fourth Proportional to 139,045.82, 191,821.91 and 93,707.28

Step by Step Solution

1. Step 1: Write the proportion equation
   139,045.82 : 191,821.91 = 93,707.28 : x
2. Step 2: Convert to fraction form
   139,045.82/191,821.91 = 93,707.28/x
3. Step 3: Cross multiply
   139,045.82x = 191,821.91 × 93,707.28
4. Step 4: Simplify right side
   139,045.82x = 17,975,108,961.97
5. Step 5: Solve for x
   x = 17,975,108,961.97/139,045.82
6. Step 6: Final answer
   x = 129,274.72