Finding the Fourth Proportional to 56,061.53, 84,074.01 and 18,611.55

Step by Step Solution

1. Step 1: Write the proportion equation
   56,061.53 : 84,074.01 = 18,611.55 : x
2. Step 2: Convert to fraction form
   56,061.53/84,074.01 = 18,611.55/x
3. Step 3: Cross multiply
   56,061.53x = 84,074.01 × 18,611.55
4. Step 4: Simplify right side
   56,061.53x = 1,564,747,640.82
5. Step 5: Solve for x
   x = 1,564,747,640.82/56,061.53
6. Step 6: Final answer
   x = 27,911.26