Finding the Fourth Proportional to 1,740,139,638.48, 2,401,456,061.16 and 947,147,289.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,740,139,638.48 : 2,401,456,061.16 = 947,147,289.12 : x
2. Step 2: Convert to fraction form
   1,740,139,638.48/2,401,456,061.16 = 947,147,289.12/x
3. Step 3: Cross multiply
   1,740,139,638.48x = 2,401,456,061.16 × 947,147,289.12
4. Step 4: Simplify right side
   1,740,139,638.48x = 2,274,532,598,268,486,912
5. Step 5: Solve for x
   x = 2,274,532,598,268,486,912/1,740,139,638.48
6. Step 6: Final answer
   x = 1,307,097,745.47