Finding the Fourth Proportional to 480,924,492.72, 663,677,086.20 and 260,907,918.72

Step by Step Solution

1. Step 1: Write the proportion equation
   480,924,492.72 : 663,677,086.20 = 260,907,918.72 : x
2. Step 2: Convert to fraction form
   480,924,492.72/663,677,086.20 = 260,907,918.72/x
3. Step 3: Cross multiply
   480,924,492.72x = 663,677,086.20 × 260,907,918.72
4. Step 4: Simplify right side
   480,924,492.72x = 173,158,607,262,596,032
5. Step 5: Solve for x
   x = 173,158,607,262,596,032/480,924,492.72
6. Step 6: Final answer
   x = 360,053,625.64