Finding the Fourth Proportional to 105,300.40, 145,267.88 and 62,834.38

Step by Step Solution

1. Step 1: Write the proportion equation
   105,300.40 : 145,267.88 = 62,834.38 : x
2. Step 2: Convert to fraction form
   105,300.40/145,267.88 = 62,834.38/x
3. Step 3: Cross multiply
   105,300.40x = 145,267.88 × 62,834.38
4. Step 4: Simplify right side
   105,300.40x = 9,127,817,173.71
5. Step 5: Solve for x
   x = 9,127,817,173.71/105,300.40
6. Step 6: Final answer
   x = 86,683.59