Finding the Fourth Proportional to 71,738.64, 99,002.52 and 59,781.96

Step by Step Solution

1. Step 1: Write the proportion equation
   71,738.64 : 99,002.52 = 59,781.96 : x
2. Step 2: Convert to fraction form
   71,738.64/99,002.52 = 59,781.96/x
3. Step 3: Cross multiply
   71,738.64x = 99,002.52 × 59,781.96
4. Step 4: Simplify right side
   71,738.64x = 5,918,564,690.54
5. Step 5: Solve for x
   x = 5,918,564,690.54/71,738.64
6. Step 6: Final answer
   x = 82,501.77