Finding the Fourth Proportional to 88,729.02, 122,434.74 and 58,572.72

Step by Step Solution

1. Step 1: Write the proportion equation
   88,729.02 : 122,434.74 = 58,572.72 : x
2. Step 2: Convert to fraction form
   88,729.02/122,434.74 = 58,572.72/x
3. Step 3: Cross multiply
   88,729.02x = 122,434.74 × 58,572.72
4. Step 4: Simplify right side
   88,729.02x = 7,171,335,744.29
5. Step 5: Solve for x
   x = 7,171,335,744.29/88,729.02
6. Step 6: Final answer
   x = 80,822.89