Finding the Fourth Proportional to 105,152.79, 145,093.72 and 62,126.34

Step by Step Solution

1. Step 1: Write the proportion equation
   105,152.79 : 145,093.72 = 62,126.34 : x
2. Step 2: Convert to fraction form
   105,152.79/145,093.72 = 62,126.34/x
3. Step 3: Cross multiply
   105,152.79x = 145,093.72 × 62,126.34
4. Step 4: Simplify right side
   105,152.79x = 9,014,141,780.58
5. Step 5: Solve for x
   x = 9,014,141,780.58/105,152.79
6. Step 6: Final answer
   x = 85,724.23