Finding the Fourth Proportional to 65,194.08, 89,964.72 and 40,038.72

Step by Step Solution

1. Step 1: Write the proportion equation
   65,194.08 : 89,964.72 = 40,038.72 : x
2. Step 2: Convert to fraction form
   65,194.08/89,964.72 = 40,038.72/x
3. Step 3: Cross multiply
   65,194.08x = 89,964.72 × 40,038.72
4. Step 4: Simplify right side
   65,194.08x = 3,602,072,233.96
5. Step 5: Solve for x
   x = 3,602,072,233.96/65,194.08
6. Step 6: Final answer
   x = 55,251.52