Finding the Fourth Proportional to 106,838.16, 147,423.72 and 59,085

Step by Step Solution

1. Step 1: Write the proportion equation
   106,838.16 : 147,423.72 = 59,085 : x
2. Step 2: Convert to fraction form
   106,838.16/147,423.72 = 59,085/x
3. Step 3: Cross multiply
   106,838.16x = 147,423.72 × 59,085
4. Step 4: Simplify right side
   106,838.16x = 8,710,530,496.20
5. Step 5: Solve for x
   x = 8,710,530,496.20/106,838.16
6. Step 6: Final answer
   x = 81,530.14