Finding the Fourth Proportional to 12,070.72, 16,657.59 and 7,355.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,070.72 : 16,657.59 = 7,355.02 : x
2. Step 2: Convert to fraction form
   12,070.72/16,657.59 = 7,355.02/x
3. Step 3: Cross multiply
   12,070.72x = 16,657.59 × 7,355.02
4. Step 4: Simplify right side
   12,070.72x = 122,516,907.60
5. Step 5: Solve for x
   x = 122,516,907.60/12,070.72
6. Step 6: Final answer
   x = 10,149.93