Finding the Fourth Proportional to 9,005.79, 12,428.00 and 5,026.91

Step by Step Solution

1. Step 1: Write the proportion equation
   9,005.79 : 12,428.00 = 5,026.91 : x
2. Step 2: Convert to fraction form
   9,005.79/12,428.00 = 5,026.91/x
3. Step 3: Cross multiply
   9,005.79x = 12,428.00 × 5,026.91
4. Step 4: Simplify right side
   9,005.79x = 62,474,350.21
5. Step 5: Solve for x
   x = 62,474,350.21/9,005.79
6. Step 6: Final answer
   x = 6,937.13