Finding the Fourth Proportional to 455,546,124.72, 628,650,521.82 and 246,697,488.12

Step by Step Solution

1. Step 1: Write the proportion equation
   455,546,124.72 : 628,650,521.82 = 246,697,488.12 : x
2. Step 2: Convert to fraction form
   455,546,124.72/628,650,521.82 = 246,697,488.12/x
3. Step 3: Cross multiply
   455,546,124.72x = 628,650,521.82 × 246,697,488.12
4. Step 4: Simplify right side
   455,546,124.72x = 155,086,504,638,321,280
5. Step 5: Solve for x
   x = 155,086,504,638,321,280/455,546,124.72
6. Step 6: Final answer
   x = 340,440,838.42