Finding the Fourth Proportional to 877,615.56, 1,316,423.34 and 308,862.72

Step by Step Solution

1. Step 1: Write the proportion equation
   877,615.56 : 1,316,423.34 = 308,862.72 : x
2. Step 2: Convert to fraction form
   877,615.56/1,316,423.34 = 308,862.72/x
3. Step 3: Cross multiply
   877,615.56x = 1,316,423.34 × 308,862.72
4. Step 4: Simplify right side
   877,615.56x = 406,594,093,463.89
5. Step 5: Solve for x
   x = 406,594,093,463.89/877,615.56
6. Step 6: Final answer
   x = 463,294.08