Finding the Fourth Proportional to 89,394.63, 134,108.34 and 42,647.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,394.63 : 134,108.34 = 42,647.50 : x
2. Step 2: Convert to fraction form
   89,394.63/134,108.34 = 42,647.50/x
3. Step 3: Cross multiply
   89,394.63x = 134,108.34 × 42,647.50
4. Step 4: Simplify right side
   89,394.63x = 5,719,385,430.15
5. Step 5: Solve for x
   x = 5,719,385,430.15/89,394.63
6. Step 6: Final answer
   x = 63,979.07