Finding the Fourth Proportional to 452,443.23, 623,951.72 and 291,013.47

Step by Step Solution

1. Step 1: Write the proportion equation
   452,443.23 : 623,951.72 = 291,013.47 : x
2. Step 2: Convert to fraction form
   452,443.23/623,951.72 = 291,013.47/x
3. Step 3: Cross multiply
   452,443.23x = 623,951.72 × 291,013.47
4. Step 4: Simplify right side
   452,443.23x = 181,578,353,694.60
5. Step 5: Solve for x
   x = 181,578,353,694.60/452,443.23
6. Step 6: Final answer
   x = 401,328.48