Finding the Fourth Proportional to 675,099.72, 931,653.83 and 384,705.07

Step by Step Solution

1. Step 1: Write the proportion equation
   675,099.72 : 931,653.83 = 384,705.07 : x
2. Step 2: Convert to fraction form
   675,099.72/931,653.83 = 384,705.07/x
3. Step 3: Cross multiply
   675,099.72x = 931,653.83 × 384,705.07
4. Step 4: Simplify right side
   675,099.72x = 358,411,950,518.55
5. Step 5: Solve for x
   x = 358,411,950,518.55/675,099.72
6. Step 6: Final answer
   x = 530,902.24