Finding the Fourth Proportional to 72,451.60, 108,685.52 and 65,010.32

Step by Step Solution

1. Step 1: Write the proportion equation
   72,451.60 : 108,685.52 = 65,010.32 : x
2. Step 2: Convert to fraction form
   72,451.60/108,685.52 = 65,010.32/x
3. Step 3: Cross multiply
   72,451.60x = 108,685.52 × 65,010.32
4. Step 4: Simplify right side
   72,451.60x = 7,065,680,434.57
5. Step 5: Solve for x
   x = 7,065,680,434.57/72,451.60
6. Step 6: Final answer
   x = 97,522.77