Finding the Fourth Proportional to 61,015.74, 91,616.58 and 58,008.62

Step by Step Solution

1. Step 1: Write the proportion equation
   61,015.74 : 91,616.58 = 58,008.62 : x
2. Step 2: Convert to fraction form
   61,015.74/91,616.58 = 58,008.62/x
3. Step 3: Cross multiply
   61,015.74x = 91,616.58 × 58,008.62
4. Step 4: Simplify right side
   61,015.74x = 5,314,550,626.79
5. Step 5: Solve for x
   x = 5,314,550,626.79/61,015.74
6. Step 6: Final answer
   x = 87,101.31