Finding the Fourth Proportional to 120,262,271.52, 165,962,389.87 and 65,258,128.02

Step by Step Solution

1. Step 1: Write the proportion equation
   120,262,271.52 : 165,962,389.87 = 65,258,128.02 : x
2. Step 2: Convert to fraction form
   120,262,271.52/165,962,389.87 = 65,258,128.02/x
3. Step 3: Cross multiply
   120,262,271.52x = 165,962,389.87 × 65,258,128.02
4. Step 4: Simplify right side
   120,262,271.52x = 10,830,394,884,641,612
5. Step 5: Solve for x
   x = 10,830,394,884,641,612/120,262,271.52
6. Step 6: Final answer
   x = 90,056,463.66