Finding the Fourth Proportional to 386,061.53, 579,756.59 and 369,453.99

Step by Step Solution

1. Step 1: Write the proportion equation
   386,061.53 : 579,756.59 = 369,453.99 : x
2. Step 2: Convert to fraction form
   386,061.53/579,756.59 = 369,453.99/x
3. Step 3: Cross multiply
   386,061.53x = 579,756.59 × 369,453.99
4. Step 4: Simplify right side
   386,061.53x = 214,193,387,116.56
5. Step 5: Solve for x
   x = 214,193,387,116.56/386,061.53
6. Step 6: Final answer
   x = 554,816.72