Finding the Fourth Proportional to 56,510.50, 84,780.87 and 19,574.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,510.50 : 84,780.87 = 19,574.50 : x
2. Step 2: Convert to fraction form
   56,510.50/84,780.87 = 19,574.50/x
3. Step 3: Cross multiply
   56,510.50x = 84,780.87 × 19,574.50
4. Step 4: Simplify right side
   56,510.50x = 1,659,543,139.82
5. Step 5: Solve for x
   x = 1,659,543,139.82/56,510.50
6. Step 6: Final answer
   x = 29,366.99