Finding the Fourth Proportional to 128,259,904.82, 176,993,926.78 and 69,521,308.82

Step by Step Solution

1. Step 1: Write the proportion equation
   128,259,904.82 : 176,993,926.78 = 69,521,308.82 : x
2. Step 2: Convert to fraction form
   128,259,904.82/176,993,926.78 = 69,521,308.82/x
3. Step 3: Cross multiply
   128,259,904.82x = 176,993,926.78 × 69,521,308.82
4. Step 4: Simplify right side
   128,259,904.82x = 12,304,849,442,936,848
5. Step 5: Solve for x
   x = 12,304,849,442,936,848/128,259,904.82
6. Step 6: Final answer
   x = 95,936,835.91