Finding the Fourth Proportional to 56,499.62, 77,966.82 and 31,005.38

Step by Step Solution

1. Step 1: Write the proportion equation
   56,499.62 : 77,966.82 = 31,005.38 : x
2. Step 2: Convert to fraction form
   56,499.62/77,966.82 = 31,005.38/x
3. Step 3: Cross multiply
   56,499.62x = 77,966.82 × 31,005.38
4. Step 4: Simplify right side
   56,499.62x = 2,417,390,881.49
5. Step 5: Solve for x
   x = 2,417,390,881.49/56,499.62
6. Step 6: Final answer
   x = 42,785.97