Finding the Fourth Proportional to 12,121,931.39, 18,182,454.18 and 3,602,046.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,121,931.39 : 18,182,454.18 = 3,602,046.42 : x
2. Step 2: Convert to fraction form
   12,121,931.39/18,182,454.18 = 3,602,046.42/x
3. Step 3: Cross multiply
   12,121,931.39x = 18,182,454.18 × 3,602,046.42
4. Step 4: Simplify right side
   12,121,931.39x = 65,494,043,985,883.03
5. Step 5: Solve for x
   x = 65,494,043,985,883.03/12,121,931.39
6. Step 6: Final answer
   x = 5,402,938.02