Finding the Fourth Proportional to 10,448,137.62, 15,665,051.58 and 5,320,642.01

Step by Step Solution

1. Step 1: Write the proportion equation
   10,448,137.62 : 15,665,051.58 = 5,320,642.01 : x
2. Step 2: Convert to fraction form
   10,448,137.62/15,665,051.58 = 5,320,642.01/x
3. Step 3: Cross multiply
   10,448,137.62x = 15,665,051.58 × 5,320,642.01
4. Step 4: Simplify right side
   10,448,137.62x = 83,348,131,447,039.61
5. Step 5: Solve for x
   x = 83,348,131,447,039.61/10,448,137.62
6. Step 6: Final answer
   x = 7,977,319.45