Finding the Fourth Proportional to 56,187, 77,531.22 and 31,036.68

Step by Step Solution

1. Step 1: Write the proportion equation
   56,187 : 77,531.22 = 31,036.68 : x
2. Step 2: Convert to fraction form
   56,187/77,531.22 = 31,036.68/x
3. Step 3: Cross multiply
   56,187x = 77,531.22 × 31,036.68
4. Step 4: Simplify right side
   56,187x = 2,406,311,665.15
5. Step 5: Solve for x
   x = 2,406,311,665.15/56,187
6. Step 6: Final answer
   x = 42,826.84