Finding the Fourth Proportional to 9,293.95, 12,807.93 and 9,123.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,293.95 : 12,807.93 = 9,123.15 : x
2. Step 2: Convert to fraction form
   9,293.95/12,807.93 = 9,123.15/x
3. Step 3: Cross multiply
   9,293.95x = 12,807.93 × 9,123.15
4. Step 4: Simplify right side
   9,293.95x = 116,848,666.58
5. Step 5: Solve for x
   x = 116,848,666.58/9,293.95
6. Step 6: Final answer
   x = 12,572.55