Finding the Fourth Proportional to 12,274,443.42, 18,390,829.37 and 7,406,520.84

Step by Step Solution

1. Step 1: Write the proportion equation
   12,274,443.42 : 18,390,829.37 = 7,406,520.84 : x
2. Step 2: Convert to fraction form
   12,274,443.42/18,390,829.37 = 7,406,520.84/x
3. Step 3: Cross multiply
   12,274,443.42x = 18,390,829.37 × 7,406,520.84
4. Step 4: Simplify right side
   12,274,443.42x = 136,212,060,985,656.62
5. Step 5: Solve for x
   x = 136,212,060,985,656.62/12,274,443.42
6. Step 6: Final answer
   x = 11,097,208.76