Finding the Fourth Proportional to 60,558.05, 90,696.20 and 58,455.69

Step by Step Solution

1. Step 1: Write the proportion equation
   60,558.05 : 90,696.20 = 58,455.69 : x
2. Step 2: Convert to fraction form
   60,558.05/90,696.20 = 58,455.69/x
3. Step 3: Cross multiply
   60,558.05x = 90,696.20 × 58,455.69
4. Step 4: Simplify right side
   60,558.05x = 5,301,708,659.10
5. Step 5: Solve for x
   x = 5,301,708,659.10/60,558.05
6. Step 6: Final answer
   x = 87,547.55