Finding the Fourth Proportional to 9,139,028.70, 12,612,361.59 and 5,064,560.22

Step by Step Solution

1. Step 1: Write the proportion equation
   9,139,028.70 : 12,612,361.59 = 5,064,560.22 : x
2. Step 2: Convert to fraction form
   9,139,028.70/12,612,361.59 = 5,064,560.22/x
3. Step 3: Cross multiply
   9,139,028.70x = 12,612,361.59 × 5,064,560.22
4. Step 4: Simplify right side
   9,139,028.70x = 63,876,064,788,969.95
5. Step 5: Solve for x
   x = 63,876,064,788,969.95/9,139,028.70
6. Step 6: Final answer
   x = 6,989,371.29