Finding the Fourth Proportional to 128,259,897.61, 176,993,916.83 and 69,521,301.59

Step by Step Solution

1. Step 1: Write the proportion equation
   128,259,897.61 : 176,993,916.83 = 69,521,301.59 : x
2. Step 2: Convert to fraction form
   128,259,897.61/176,993,916.83 = 69,521,301.59/x
3. Step 3: Cross multiply
   128,259,897.61x = 176,993,916.83 × 69,521,301.59
4. Step 4: Simplify right side
   128,259,897.61x = 12,304,847,471,460,196
5. Step 5: Solve for x
   x = 12,304,847,471,460,196/128,259,897.61
6. Step 6: Final answer
   x = 95,936,825.94