Finding the Fourth Proportional to 105,109.34, 145,046.34 and 59,780.93

Step by Step Solution

1. Step 1: Write the proportion equation
   105,109.34 : 145,046.34 = 59,780.93 : x
2. Step 2: Convert to fraction form
   105,109.34/145,046.34 = 59,780.93/x
3. Step 3: Cross multiply
   105,109.34x = 145,046.34 × 59,780.93
4. Step 4: Simplify right side
   105,109.34x = 8,671,004,373.06
5. Step 5: Solve for x
   x = 8,671,004,373.06/105,109.34
6. Step 6: Final answer
   x = 82,495.09