Finding the Fourth Proportional to 59,902.55, 89,820.09 and 19,900.11

Step by Step Solution

1. Step 1: Write the proportion equation
   59,902.55 : 89,820.09 = 19,900.11 : x
2. Step 2: Convert to fraction form
   59,902.55/89,820.09 = 19,900.11/x
3. Step 3: Cross multiply
   59,902.55x = 89,820.09 × 19,900.11
4. Step 4: Simplify right side
   59,902.55x = 1,787,429,671.21
5. Step 5: Solve for x
   x = 1,787,429,671.21/59,902.55
6. Step 6: Final answer
   x = 29,838.96