Finding the Fourth Proportional to 663,677,632.42, 915,738,402.43 and 381,365,530.73

Step by Step Solution

1. Step 1: Write the proportion equation
   663,677,632.42 : 915,738,402.43 = 381,365,530.73 : x
2. Step 2: Convert to fraction form
   663,677,632.42/915,738,402.43 = 381,365,530.73/x
3. Step 3: Cross multiply
   663,677,632.42x = 915,738,402.43 × 381,365,530.73
4. Step 4: Simplify right side
   663,677,632.42x = 349,231,061,849,748,032
5. Step 5: Solve for x
   x = 349,231,061,849,748,032/663,677,632.42
6. Step 6: Final answer
   x = 526,205,863.80