Finding the Fourth Proportional to 89,393.63, 134,106.84 and 42,646.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,393.63 : 134,106.84 = 42,646.50 : x
2. Step 2: Convert to fraction form
   89,393.63/134,106.84 = 42,646.50/x
3. Step 3: Cross multiply
   89,393.63x = 134,106.84 × 42,646.50
4. Step 4: Simplify right side
   89,393.63x = 5,719,187,352.06
5. Step 5: Solve for x
   x = 5,719,187,352.06/89,393.63
6. Step 6: Final answer
   x = 63,977.58