Finding the Fourth Proportional to 1,025,307,980.35, 1,415,152,635.87 and 623,336,315.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,025,307,980.35 : 1,415,152,635.87 = 623,336,315.33 : x
2. Step 2: Convert to fraction form
   1,025,307,980.35/1,415,152,635.87 = 623,336,315.33/x
3. Step 3: Cross multiply
   1,025,307,980.35x = 1,415,152,635.87 × 623,336,315.33
4. Step 4: Simplify right side
   1,025,307,980.35x = 882,116,029,670,591,616
5. Step 5: Solve for x
   x = 882,116,029,670,591,616/1,025,307,980.35
6. Step 6: Final answer
   x = 860,342,498.62