Finding the Fourth Proportional to 56,008.48, 77,291.67 and 30,857.98

Step by Step Solution

1. Step 1: Write the proportion equation
   56,008.48 : 77,291.67 = 30,857.98 : x
2. Step 2: Convert to fraction form
   56,008.48/77,291.67 = 30,857.98/x
3. Step 3: Cross multiply
   56,008.48x = 77,291.67 × 30,857.98
4. Step 4: Simplify right side
   56,008.48x = 2,385,064,700.86
5. Step 5: Solve for x
   x = 2,385,064,700.86/56,008.48
6. Step 6: Final answer
   x = 42,583.99