Finding the Fourth Proportional to 624,499.59, 937,123.10 and 573,680.55

Step by Step Solution

1. Step 1: Write the proportion equation
   624,499.59 : 937,123.10 = 573,680.55 : x
2. Step 2: Convert to fraction form
   624,499.59/937,123.10 = 573,680.55/x
3. Step 3: Cross multiply
   624,499.59x = 937,123.10 × 573,680.55
4. Step 4: Simplify right side
   624,499.59x = 537,609,295,425.71
5. Step 5: Solve for x
   x = 537,609,295,425.71/624,499.59
6. Step 6: Final answer
   x = 860,864.13