Finding the Fourth Proportional to 13,023,989.50, 17,973,105.51 and 7,223,659.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,023,989.50 : 17,973,105.51 = 7,223,659.42 : x
2. Step 2: Convert to fraction form
   13,023,989.50/17,973,105.51 = 7,223,659.42/x
3. Step 3: Cross multiply
   13,023,989.50x = 17,973,105.51 × 7,223,659.42
4. Step 4: Simplify right side
   13,023,989.50x = 129,831,592,923,965.42
5. Step 5: Solve for x
   x = 129,831,592,923,965.42/13,023,989.50
6. Step 6: Final answer
   x = 9,968,650.00