Finding the Fourth Proportional to 89,705.46, 134,511.47 and 42,307.83

Step by Step Solution

1. Step 1: Write the proportion equation
   89,705.46 : 134,511.47 = 42,307.83 : x
2. Step 2: Convert to fraction form
   89,705.46/134,511.47 = 42,307.83/x
3. Step 3: Cross multiply
   89,705.46x = 134,511.47 × 42,307.83
4. Step 4: Simplify right side
   89,705.46x = 5,690,888,405.81
5. Step 5: Solve for x
   x = 5,690,888,405.81/89,705.46
6. Step 6: Final answer
   x = 63,439.71