Finding the Fourth Proportional to 9,103.05, 12,561.67 and 5,123.93

Step by Step Solution

1. Step 1: Write the proportion equation
   9,103.05 : 12,561.67 = 5,123.93 : x
2. Step 2: Convert to fraction form
   9,103.05/12,561.67 = 5,123.93/x
3. Step 3: Cross multiply
   9,103.05x = 12,561.67 × 5,123.93
4. Step 4: Simplify right side
   9,103.05x = 64,365,117.76
5. Step 5: Solve for x
   x = 64,365,117.76/9,103.05
6. Step 6: Final answer
   x = 7,070.72