Finding the Fourth Proportional to 1,778,820,466.50, 2,453,340,897.72 and 1,563,779,321.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,778,820,466.50 : 2,453,340,897.72 = 1,563,779,321.28 : x
2. Step 2: Convert to fraction form
   1,778,820,466.50/2,453,340,897.72 = 1,563,779,321.28/x
3. Step 3: Cross multiply
   1,778,820,466.50x = 2,453,340,897.72 × 1,563,779,321.28
4. Step 4: Simplify right side
   1,778,820,466.50x = 3,836,483,763,905,047,040
5. Step 5: Solve for x
   x = 3,836,483,763,905,047,040/1,778,820,466.50
6. Step 6: Final answer
   x = 2,156,757,152.37