Finding the Fourth Proportional to 554,271.12, 832,738.32 and 354,978.72

Step by Step Solution

1. Step 1: Write the proportion equation
   554,271.12 : 832,738.32 = 354,978.72 : x
2. Step 2: Convert to fraction form
   554,271.12/832,738.32 = 354,978.72/x
3. Step 3: Cross multiply
   554,271.12x = 832,738.32 × 354,978.72
4. Step 4: Simplify right side
   554,271.12x = 295,604,382,928.55
5. Step 5: Solve for x
   x = 295,604,382,928.55/554,271.12
6. Step 6: Final answer
   x = 533,320.92