Finding the Fourth Proportional to 107,128.49, 147,838.82 and 58,734.98

Step by Step Solution

1. Step 1: Write the proportion equation
   107,128.49 : 147,838.82 = 58,734.98 : x
2. Step 2: Convert to fraction form
   107,128.49/147,838.82 = 58,734.98/x
3. Step 3: Cross multiply
   107,128.49x = 147,838.82 × 58,734.98
4. Step 4: Simplify right side
   107,128.49x = 8,683,309,842.25
5. Step 5: Solve for x
   x = 8,683,309,842.25/107,128.49
6. Step 6: Final answer
   x = 81,055.09