Finding the Fourth Proportional to 120,271,458.78, 165,974,614.38 and 65,267,315.28

Step by Step Solution

1. Step 1: Write the proportion equation
   120,271,458.78 : 165,974,614.38 = 65,267,315.28 : x
2. Step 2: Convert to fraction form
   120,271,458.78/165,974,614.38 = 65,267,315.28/x
3. Step 3: Cross multiply
   120,271,458.78x = 165,974,614.38 × 65,267,315.28
4. Step 4: Simplify right side
   120,271,458.78x = 10,832,717,485,215,882
5. Step 5: Solve for x
   x = 10,832,717,485,215,882/120,271,458.78
6. Step 6: Final answer
   x = 90,068,895.77