Finding the Fourth Proportional to 151,507.78, 209,082.20 and 83,527.25

Step by Step Solution

1. Step 1: Write the proportion equation
   151,507.78 : 209,082.20 = 83,527.25 : x
2. Step 2: Convert to fraction form
   151,507.78/209,082.20 = 83,527.25/x
3. Step 3: Cross multiply
   151,507.78x = 209,082.20 × 83,527.25
4. Step 4: Simplify right side
   151,507.78x = 17,464,060,902.99
5. Step 5: Solve for x
   x = 17,464,060,902.99/151,507.78
6. Step 6: Final answer
   x = 115,268.41