Finding the Fourth Proportional to 60,443.01, 90,057.02 and 57,047.63

Step by Step Solution

1. Step 1: Write the proportion equation
   60,443.01 : 90,057.02 = 57,047.63 : x
2. Step 2: Convert to fraction form
   60,443.01/90,057.02 = 57,047.63/x
3. Step 3: Cross multiply
   60,443.01x = 90,057.02 × 57,047.63
4. Step 4: Simplify right side
   60,443.01x = 5,137,538,820.34
5. Step 5: Solve for x
   x = 5,137,538,820.34/60,443.01
6. Step 6: Final answer
   x = 84,998.06