Finding the Fourth Proportional to 9,515,782.79, 13,131,428.46 and 5,164,775.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,515,782.79 : 13,131,428.46 = 5,164,775.96 : x
2. Step 2: Convert to fraction form
   9,515,782.79/13,131,428.46 = 5,164,775.96/x
3. Step 3: Cross multiply
   9,515,782.79x = 13,131,428.46 × 5,164,775.96
4. Step 4: Simplify right side
   9,515,782.79x = 67,820,885,965,010.69
5. Step 5: Solve for x
   x = 67,820,885,965,010.69/9,515,782.79
6. Step 6: Final answer
   x = 7,127,199.88