Finding the Fourth Proportional to 9,051.56, 12,490.06 and 5,071.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,051.56 : 12,490.06 = 5,071.76 : x
2. Step 2: Convert to fraction form
   9,051.56/12,490.06 = 5,071.76/x
3. Step 3: Cross multiply
   9,051.56x = 12,490.06 × 5,071.76
4. Step 4: Simplify right side
   9,051.56x = 63,346,586.71
5. Step 5: Solve for x
   x = 63,346,586.71/9,051.56
6. Step 6: Final answer
   x = 6,998.42