Finding the Fourth Proportional to 89,987.61, 134,929.17 and 30,807.39

Step by Step Solution

1. Step 1: Write the proportion equation
   89,987.61 : 134,929.17 = 30,807.39 : x
2. Step 2: Convert to fraction form
   89,987.61/134,929.17 = 30,807.39/x
3. Step 3: Cross multiply
   89,987.61x = 134,929.17 × 30,807.39
4. Step 4: Simplify right side
   89,987.61x = 4,156,815,562.57
5. Step 5: Solve for x
   x = 4,156,815,562.57/89,987.61
6. Step 6: Final answer
   x = 46,193.20