Finding the Fourth Proportional to 89,261.52, 123,186.60 and 58,993.74

Step by Step Solution

1. Step 1: Write the proportion equation
   89,261.52 : 123,186.60 = 58,993.74 : x
2. Step 2: Convert to fraction form
   89,261.52/123,186.60 = 58,993.74/x
3. Step 3: Cross multiply
   89,261.52x = 123,186.60 × 58,993.74
4. Step 4: Simplify right side
   89,261.52x = 7,267,238,251.88
5. Step 5: Solve for x
   x = 7,267,238,251.88/89,261.52
6. Step 6: Final answer
   x = 81,415.13