Finding the Fourth Proportional to 9,123.58, 12,590.54 and 4,931.83

Step by Step Solution

1. Step 1: Write the proportion equation
   9,123.58 : 12,590.54 = 4,931.83 : x
2. Step 2: Convert to fraction form
   9,123.58/12,590.54 = 4,931.83/x
3. Step 3: Cross multiply
   9,123.58x = 12,590.54 × 4,931.83
4. Step 4: Simplify right side
   9,123.58x = 62,094,402.89
5. Step 5: Solve for x
   x = 62,094,402.89/9,123.58
6. Step 6: Final answer
   x = 6,805.93