Finding the Fourth Proportional to 56,870.99, 85,316.52 and 19,422.29

Step by Step Solution

1. Step 1: Write the proportion equation
   56,870.99 : 85,316.52 = 19,422.29 : x
2. Step 2: Convert to fraction form
   56,870.99/85,316.52 = 19,422.29/x
3. Step 3: Cross multiply
   56,870.99x = 85,316.52 × 19,422.29
4. Step 4: Simplify right side
   56,870.99x = 1,657,041,835.57
5. Step 5: Solve for x
   x = 1,657,041,835.57/56,870.99
6. Step 6: Final answer
   x = 29,136.86