Finding the Fourth Proportional to 151,106.84, 208,527.89 and 83,130.78

Step by Step Solution

1. Step 1: Write the proportion equation
   151,106.84 : 208,527.89 = 83,130.78 : x
2. Step 2: Convert to fraction form
   151,106.84/208,527.89 = 83,130.78/x
3. Step 3: Cross multiply
   151,106.84x = 208,527.89 × 83,130.78
4. Step 4: Simplify right side
   151,106.84x = 17,335,085,731.80
5. Step 5: Solve for x
   x = 17,335,085,731.80/151,106.84
6. Step 6: Final answer
   x = 114,720.73