Finding the Fourth Proportional to 107,111.83, 147,811.21 and 58,712.75

Step by Step Solution

1. Step 1: Write the proportion equation
   107,111.83 : 147,811.21 = 58,712.75 : x
2. Step 2: Convert to fraction form
   107,111.83/147,811.21 = 58,712.75/x
3. Step 3: Cross multiply
   107,111.83x = 147,811.21 × 58,712.75
4. Step 4: Simplify right side
   107,111.83x = 8,678,402,680.56
5. Step 5: Solve for x
   x = 8,678,402,680.56/107,111.83
6. Step 6: Final answer
   x = 81,021.89