Finding the Fourth Proportional to 56,156.04, 77,494.86 and 31,005

Step by Step Solution

1. Step 1: Write the proportion equation
   56,156.04 : 77,494.86 = 31,005 : x
2. Step 2: Convert to fraction form
   56,156.04/77,494.86 = 31,005/x
3. Step 3: Cross multiply
   56,156.04x = 77,494.86 × 31,005
4. Step 4: Simplify right side
   56,156.04x = 2,402,728,134.30
5. Step 5: Solve for x
   x = 2,402,728,134.30/56,156.04
6. Step 6: Final answer
   x = 42,786.64