Finding the Fourth Proportional to 139,047.84, 191,784.06 and 91,283.76

Step by Step Solution

1. Step 1: Write the proportion equation
   139,047.84 : 191,784.06 = 91,283.76 : x
2. Step 2: Convert to fraction form
   139,047.84/191,784.06 = 91,283.76/x
3. Step 3: Cross multiply
   139,047.84x = 191,784.06 × 91,283.76
4. Step 4: Simplify right side
   139,047.84x = 17,506,770,104.87
5. Step 5: Solve for x
   x = 17,506,770,104.87/139,047.84
6. Step 6: Final answer
   x = 125,904.65