Finding the Fourth Proportional to 120,262,271.64, 165,962,390.06 and 65,258,128.14

Step by Step Solution

1. Step 1: Write the proportion equation
   120,262,271.64 : 165,962,390.06 = 65,258,128.14 : x
2. Step 2: Convert to fraction form
   120,262,271.64/165,962,390.06 = 65,258,128.14/x
3. Step 3: Cross multiply
   120,262,271.64x = 165,962,390.06 × 65,258,128.14
4. Step 4: Simplify right side
   120,262,271.64x = 10,830,394,916,496,928
5. Step 5: Solve for x
   x = 10,830,394,916,496,928/120,262,271.64
6. Step 6: Final answer
   x = 90,056,463.84