Finding the Fourth Proportional to 89,501.80, 134,099.10 and 42,653.80

Step by Step Solution

1. Step 1: Write the proportion equation
   89,501.80 : 134,099.10 = 42,653.80 : x
2. Step 2: Convert to fraction form
   89,501.80/134,099.10 = 42,653.80/x
3. Step 3: Cross multiply
   89,501.80x = 134,099.10 × 42,653.80
4. Step 4: Simplify right side
   89,501.80x = 5,719,836,191.58
5. Step 5: Solve for x
   x = 5,719,836,191.58/89,501.80
6. Step 6: Final answer
   x = 63,907.50