Finding the Fourth Proportional to 128,460,783.25, 177,276,075.69 and 69,723,469.83

Step by Step Solution

1. Step 1: Write the proportion equation
   128,460,783.25 : 177,276,075.69 = 69,723,469.83 : x
2. Step 2: Convert to fraction form
   128,460,783.25/177,276,075.69 = 69,723,469.83/x
3. Step 3: Cross multiply
   128,460,783.25x = 177,276,075.69 × 69,723,469.83
4. Step 4: Simplify right side
   128,460,783.25x = 12,360,303,114,952,510
5. Step 5: Solve for x
   x = 12,360,303,114,952,510/128,460,783.25
6. Step 6: Final answer
   x = 96,218,494.10