Finding the Fourth Proportional to 56,566, 78,062.70 and 31,417.12

Step by Step Solution

1. Step 1: Write the proportion equation
   56,566 : 78,062.70 = 31,417.12 : x
2. Step 2: Convert to fraction form
   56,566/78,062.70 = 31,417.12/x
3. Step 3: Cross multiply
   56,566x = 78,062.70 × 31,417.12
4. Step 4: Simplify right side
   56,566x = 2,452,505,213.42
5. Step 5: Solve for x
   x = 2,452,505,213.42/56,566
6. Step 6: Final answer
   x = 43,356.53