Finding the Fourth Proportional to 723,010,549.46, 997,684,839.86 and 405,483,686.06

Step by Step Solution

1. Step 1: Write the proportion equation
   723,010,549.46 : 997,684,839.86 = 405,483,686.06 : x
2. Step 2: Convert to fraction form
   723,010,549.46/997,684,839.86 = 405,483,686.06/x
3. Step 3: Cross multiply
   723,010,549.46x = 997,684,839.86 × 405,483,686.06
4. Step 4: Simplify right side
   723,010,549.46x = 404,544,926,385,597,760
5. Step 5: Solve for x
   x = 404,544,926,385,597,760/723,010,549.46
6. Step 6: Final answer
   x = 559,528,386.81