Finding the Fourth Proportional to 9,191.02, 12,690.93 and 5,656.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,191.02 : 12,690.93 = 5,656.18 : x
2. Step 2: Convert to fraction form
   9,191.02/12,690.93 = 5,656.18/x
3. Step 3: Cross multiply
   9,191.02x = 12,690.93 × 5,656.18
4. Step 4: Simplify right side
   9,191.02x = 71,782,184.45
5. Step 5: Solve for x
   x = 71,782,184.45/9,191.02
6. Step 6: Final answer
   x = 7,810.03