Finding the Fourth Proportional to 106,406.60, 146,847.72 and 58,659.86

Step by Step Solution

1. Step 1: Write the proportion equation
   106,406.60 : 146,847.72 = 58,659.86 : x
2. Step 2: Convert to fraction form
   106,406.60/146,847.72 = 58,659.86/x
3. Step 3: Cross multiply
   106,406.60x = 146,847.72 × 58,659.86
4. Step 4: Simplify right side
   106,406.60x = 8,614,066,696.52
5. Step 5: Solve for x
   x = 8,614,066,696.52/106,406.60
6. Step 6: Final answer
   x = 80,954.25