Finding the Fourth Proportional to 90,453.84, 124,888.14 and 56,514.03

Step by Step Solution

1. Step 1: Write the proportion equation
   90,453.84 : 124,888.14 = 56,514.03 : x
2. Step 2: Convert to fraction form
   90,453.84/124,888.14 = 56,514.03/x
3. Step 3: Cross multiply
   90,453.84x = 124,888.14 × 56,514.03
4. Step 4: Simplify right side
   90,453.84x = 7,057,932,090.60
5. Step 5: Solve for x
   x = 7,057,932,090.60/90,453.84
6. Step 6: Final answer
   x = 78,028.00