Finding the Fourth Proportional to 13,513,250.58, 18,648,528.12 and 7,401,285.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,513,250.58 : 18,648,528.12 = 7,401,285.42 : x
2. Step 2: Convert to fraction form
   13,513,250.58/18,648,528.12 = 7,401,285.42/x
3. Step 3: Cross multiply
   13,513,250.58x = 18,648,528.12 × 7,401,285.42
4. Step 4: Simplify right side
   13,513,250.58x = 138,023,079,279,016.02
5. Step 5: Solve for x
   x = 138,023,079,279,016.02/13,513,250.58
6. Step 6: Final answer
   x = 10,213,906.60