Finding the Fourth Proportional to 93,019.15, 128,362.89 and 50,577.72

Step by Step Solution

1. Step 1: Write the proportion equation
   93,019.15 : 128,362.89 = 50,577.72 : x
2. Step 2: Convert to fraction form
   93,019.15/128,362.89 = 50,577.72/x
3. Step 3: Cross multiply
   93,019.15x = 128,362.89 × 50,577.72
4. Step 4: Simplify right side
   93,019.15x = 6,492,302,308.81
5. Step 5: Solve for x
   x = 6,492,302,308.81/93,019.15
6. Step 6: Final answer
   x = 69,795.33