Finding the Fourth Proportional to 56,496.42, 77,962.43 and 31,002.15

Step by Step Solution

1. Step 1: Write the proportion equation
   56,496.42 : 77,962.43 = 31,002.15 : x
2. Step 2: Convert to fraction form
   56,496.42/77,962.43 = 31,002.15/x
3. Step 3: Cross multiply
   56,496.42x = 77,962.43 × 31,002.15
4. Step 4: Simplify right side
   56,496.42x = 2,417,002,949.22
5. Step 5: Solve for x
   x = 2,417,002,949.22/56,496.42
6. Step 6: Final answer
   x = 42,781.52