Finding the Fourth Proportional to 60,970.52, 91,912.76 and 56,906.34

Step by Step Solution

1. Step 1: Write the proportion equation
   60,970.52 : 91,912.76 = 56,906.34 : x
2. Step 2: Convert to fraction form
   60,970.52/91,912.76 = 56,906.34/x
3. Step 3: Cross multiply
   60,970.52x = 91,912.76 × 56,906.34
4. Step 4: Simplify right side
   60,970.52x = 5,230,418,486.37
5. Step 5: Solve for x
   x = 5,230,418,486.37/60,970.52
6. Step 6: Final answer
   x = 85,786.03