Finding the Fourth Proportional to 151,738.56, 209,405.76 and 84,670.56

Step by Step Solution

1. Step 1: Write the proportion equation
   151,738.56 : 209,405.76 = 84,670.56 : x
2. Step 2: Convert to fraction form
   151,738.56/209,405.76 = 84,670.56/x
3. Step 3: Cross multiply
   151,738.56x = 209,405.76 × 84,670.56
4. Step 4: Simplify right side
   151,738.56x = 17,730,502,966.43
5. Step 5: Solve for x
   x = 17,730,502,966.43/151,738.56
6. Step 6: Final answer
   x = 116,849.03