Finding the Fourth Proportional to 1,282,404,493.18, 1,924,850,638.98 and 618,885,459.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,282,404,493.18 : 1,924,850,638.98 = 618,885,459.25 : x
2. Step 2: Convert to fraction form
   1,282,404,493.18/1,924,850,638.98 = 618,885,459.25/x
3. Step 3: Cross multiply
   1,282,404,493.18x = 1,924,850,638.98 × 618,885,459.25
4. Step 4: Simplify right side
   1,282,404,493.18x = 1,191,262,071,692,793,344
5. Step 5: Solve for x
   x = 1,191,262,071,692,793,344/1,282,404,493.18
6. Step 6: Final answer
   x = 928,928,491.77