Finding the Fourth Proportional to 9,123.34, 12,590.23 and 4,931.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,123.34 : 12,590.23 = 4,931.59 : x
2. Step 2: Convert to fraction form
   9,123.34/12,590.23 = 4,931.59/x
3. Step 3: Cross multiply
   9,123.34x = 12,590.23 × 4,931.59
4. Step 4: Simplify right side
   9,123.34x = 62,089,852.37
5. Step 5: Solve for x
   x = 62,089,852.37/9,123.34
6. Step 6: Final answer
   x = 6,805.61