Finding the Fourth Proportional to 81,074.88, 121,796.86 and 58,654.72

Step by Step Solution

1. Step 1: Write the proportion equation
   81,074.88 : 121,796.86 = 58,654.72 : x
2. Step 2: Convert to fraction form
   81,074.88/121,796.86 = 58,654.72/x
3. Step 3: Cross multiply
   81,074.88x = 121,796.86 × 58,654.72
4. Step 4: Simplify right side
   81,074.88x = 7,143,960,720.18
5. Step 5: Solve for x
   x = 7,143,960,720.18/81,074.88
6. Step 6: Final answer
   x = 88,115.59