Finding the Fourth Proportional to 120,285,532.52, 165,994,103.94 and 65,281,389.02

Step by Step Solution

1. Step 1: Write the proportion equation
   120,285,532.52 : 165,994,103.94 = 65,281,389.02 : x
2. Step 2: Convert to fraction form
   120,285,532.52/165,994,103.94 = 65,281,389.02/x
3. Step 3: Cross multiply
   120,285,532.52x = 165,994,103.94 × 65,281,389.02
4. Step 4: Simplify right side
   120,285,532.52x = 10,836,325,674,333,456
5. Step 5: Solve for x
   x = 10,836,325,674,333,456/120,285,532.52
6. Step 6: Final answer
   x = 90,088,354.33