Finding the Fourth Proportional to 9,157,856.06, 12,638,196.79 and 5,028,061.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,157,856.06 : 12,638,196.79 = 5,028,061.28 : x
2. Step 2: Convert to fraction form
   9,157,856.06/12,638,196.79 = 5,028,061.28/x
3. Step 3: Cross multiply
   9,157,856.06x = 12,638,196.79 × 5,028,061.28
4. Step 4: Simplify right side
   9,157,856.06x = 63,545,627,853,058.16
5. Step 5: Solve for x
   x = 63,545,627,853,058.16/9,157,856.06
6. Step 6: Final answer
   x = 6,938,919.70