Finding the Fourth Proportional to 257,733,443.27, 355,683,863.72 and 151,891,325.54

Step by Step Solution

1. Step 1: Write the proportion equation
   257,733,443.27 : 355,683,863.72 = 151,891,325.54 : x
2. Step 2: Convert to fraction form
   257,733,443.27/355,683,863.72 = 151,891,325.54/x
3. Step 3: Cross multiply
   257,733,443.27x = 355,683,863.72 × 151,891,325.54
4. Step 4: Simplify right side
   257,733,443.27x = 54,025,293,533,619,520
5. Step 5: Solve for x
   x = 54,025,293,533,619,520/257,733,443.27
6. Step 6: Final answer
   x = 209,616,931.54