Finding the Fourth Proportional to 93,300.82, 128,757.74 and 57,008.16

Step by Step Solution

1. Step 1: Write the proportion equation
   93,300.82 : 128,757.74 = 57,008.16 : x
2. Step 2: Convert to fraction form
   93,300.82/128,757.74 = 57,008.16/x
3. Step 3: Cross multiply
   93,300.82x = 128,757.74 × 57,008.16
4. Step 4: Simplify right side
   93,300.82x = 7,340,241,558.12
5. Step 5: Solve for x
   x = 7,340,241,558.12/93,300.82
6. Step 6: Final answer
   x = 78,672.85