Finding the Fourth Proportional to 9,051.60, 12,491.52 and 5,072.58

Step by Step Solution

1. Step 1: Write the proportion equation
   9,051.60 : 12,491.52 = 5,072.58 : x
2. Step 2: Convert to fraction form
   9,051.60/12,491.52 = 5,072.58/x
3. Step 3: Cross multiply
   9,051.60x = 12,491.52 × 5,072.58
4. Step 4: Simplify right side
   9,051.60x = 63,364,234.52
5. Step 5: Solve for x
   x = 63,364,234.52/9,051.60
6. Step 6: Final answer
   x = 7,000.34