Finding the Fourth Proportional to 213,658,499.52, 294,848,729.28 and 115,873,355.52

Step by Step Solution

1. Step 1: Write the proportion equation
   213,658,499.52 : 294,848,729.28 = 115,873,355.52 : x
2. Step 2: Convert to fraction form
   213,658,499.52/294,848,729.28 = 115,873,355.52/x
3. Step 3: Cross multiply
   213,658,499.52x = 294,848,729.28 × 115,873,355.52
4. Step 4: Simplify right side
   213,658,499.52x = 34,165,111,632,481,668
5. Step 5: Solve for x
   x = 34,165,111,632,481,668/213,658,499.52
6. Step 6: Final answer
   x = 159,905,230.59