Finding the Fourth Proportional to 151,870.69, 209,580.78 and 83,892.43

Step by Step Solution

1. Step 1: Write the proportion equation
   151,870.69 : 209,580.78 = 83,892.43 : x
2. Step 2: Convert to fraction form
   151,870.69/209,580.78 = 83,892.43/x
3. Step 3: Cross multiply
   151,870.69x = 209,580.78 × 83,892.43
4. Step 4: Simplify right side
   151,870.69x = 17,582,240,915.50
5. Step 5: Solve for x
   x = 17,582,240,915.50/151,870.69
6. Step 6: Final answer
   x = 115,771.13