Finding the Fourth Proportional to 56,970.70, 85,362.34 and 19,510.12

Step by Step Solution

1. Step 1: Write the proportion equation
   56,970.70 : 85,362.34 = 19,510.12 : x
2. Step 2: Convert to fraction form
   56,970.70/85,362.34 = 19,510.12/x
3. Step 3: Cross multiply
   56,970.70x = 85,362.34 × 19,510.12
4. Step 4: Simplify right side
   56,970.70x = 1,665,429,496.88
5. Step 5: Solve for x
   x = 1,665,429,496.88/56,970.70
6. Step 6: Final answer
   x = 29,233.09