Finding the Fourth Proportional to 5,431,648.86, 7,492,558.17 and 3,390,915.42

Step by Step Solution

1. Step 1: Write the proportion equation
   5,431,648.86 : 7,492,558.17 = 3,390,915.42 : x
2. Step 2: Convert to fraction form
   5,431,648.86/7,492,558.17 = 3,390,915.42/x
3. Step 3: Cross multiply
   5,431,648.86x = 7,492,558.17 × 3,390,915.42
4. Step 4: Simplify right side
   5,431,648.86x = 25,406,631,016,945.40
5. Step 5: Solve for x
   x = 25,406,631,016,945.40/5,431,648.86
6. Step 6: Final answer
   x = 4,677,517.21