Finding the Fourth Proportional to 56,610.75, 78,126.34 and 47,162.91

Step by Step Solution

1. Step 1: Write the proportion equation
   56,610.75 : 78,126.34 = 47,162.91 : x
2. Step 2: Convert to fraction form
   56,610.75/78,126.34 = 47,162.91/x
3. Step 3: Cross multiply
   56,610.75x = 78,126.34 × 47,162.91
4. Step 4: Simplify right side
   56,610.75x = 3,684,665,805.55
5. Step 5: Solve for x
   x = 3,684,665,805.55/56,610.75
6. Step 6: Final answer
   x = 65,087.74