Finding the Fourth Proportional to 53,632.71, 80,470.94 and 43,200.72

Step by Step Solution

1. Step 1: Write the proportion equation
   53,632.71 : 80,470.94 = 43,200.72 : x
2. Step 2: Convert to fraction form
   53,632.71/80,470.94 = 43,200.72/x
3. Step 3: Cross multiply
   53,632.71x = 80,470.94 × 43,200.72
4. Step 4: Simplify right side
   53,632.71x = 3,476,402,331.07
5. Step 5: Solve for x
   x = 3,476,402,331.07/53,632.71
6. Step 6: Final answer
   x = 64,818.70