Finding the Fourth Proportional to 261,036.05, 364,663.15 and 261,036.05

Step by Step Solution

1. Step 1: Write the proportion equation
   261,036.05 : 364,663.15 = 261,036.05 : x
2. Step 2: Convert to fraction form
   261,036.05/364,663.15 = 261,036.05/x
3. Step 3: Cross multiply
   261,036.05x = 364,663.15 × 261,036.05
4. Step 4: Simplify right side
   261,036.05x = 95,190,228,256.56
5. Step 5: Solve for x
   x = 95,190,228,256.56/261,036.05
6. Step 6: Final answer
   x = 364,663.15