Finding the Fourth Proportional to 57,593.45, 78,903.51 and 55,436.22

Step by Step Solution

1. Step 1: Write the proportion equation
   57,593.45 : 78,903.51 = 55,436.22 : x
2. Step 2: Convert to fraction form
   57,593.45/78,903.51 = 55,436.22/x
3. Step 3: Cross multiply
   57,593.45x = 78,903.51 × 55,436.22
4. Step 4: Simplify right side
   57,593.45x = 4,374,112,131.25
5. Step 5: Solve for x
   x = 4,374,112,131.25/57,593.45
6. Step 6: Final answer
   x = 75,948.08