Finding the Fourth Proportional to 10,448,164.17, 15,665,091.53 and 5,320,668.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,448,164.17 : 15,665,091.53 = 5,320,668.69 : x
2. Step 2: Convert to fraction form
   10,448,164.17/15,665,091.53 = 5,320,668.69/x
3. Step 3: Cross multiply
   10,448,164.17x = 15,665,091.53 × 5,320,668.69
4. Step 4: Simplify right side
   10,448,164.17x = 83,348,762,003,051.86
5. Step 5: Solve for x
   x = 83,348,762,003,051.86/10,448,164.17
6. Step 6: Final answer
   x = 7,977,359.53