Finding the Fourth Proportional to 56,018.56, 77,302.56 and 30,866.08

Step by Step Solution

1. Step 1: Write the proportion equation
   56,018.56 : 77,302.56 = 30,866.08 : x
2. Step 2: Convert to fraction form
   56,018.56/77,302.56 = 30,866.08/x
3. Step 3: Cross multiply
   56,018.56x = 77,302.56 × 30,866.08
4. Step 4: Simplify right side
   56,018.56x = 2,386,027,001.16
5. Step 5: Solve for x
   x = 2,386,027,001.16/56,018.56
6. Step 6: Final answer
   x = 42,593.51