Finding the Fourth Proportional to 309,056,322.32, 426,071,556.80 and 246,544,590.72

Step by Step Solution

1. Step 1: Write the proportion equation
   309,056,322.32 : 426,071,556.80 = 246,544,590.72 : x
2. Step 2: Convert to fraction form
   309,056,322.32/426,071,556.80 = 246,544,590.72/x
3. Step 3: Cross multiply
   309,056,322.32x = 426,071,556.80 × 246,544,590.72
4. Step 4: Simplify right side
   309,056,322.32x = 105,045,637,588,689,232
5. Step 5: Solve for x
   x = 105,045,637,588,689,232/309,056,322.32
6. Step 6: Final answer
   x = 339,891,566.69