Finding the Fourth Proportional to 10,225,857.57, 14,111,978.88 and 5,642,474.19

Step by Step Solution

1. Step 1: Write the proportion equation
   10,225,857.57 : 14,111,978.88 = 5,642,474.19 : x
2. Step 2: Convert to fraction form
   10,225,857.57/14,111,978.88 = 5,642,474.19/x
3. Step 3: Cross multiply
   10,225,857.57x = 14,111,978.88 × 5,642,474.19
4. Step 4: Simplify right side
   10,225,857.57x = 79,626,476,600,225.12
5. Step 5: Solve for x
   x = 79,626,476,600,225.12/10,225,857.57
6. Step 6: Final answer
   x = 7,786,777.40