Finding the Fourth Proportional to 105,030.17, 144,967.83 and 62,580.50

Step by Step Solution

1. Step 1: Write the proportion equation
   105,030.17 : 144,967.83 = 62,580.50 : x
2. Step 2: Convert to fraction form
   105,030.17/144,967.83 = 62,580.50/x
3. Step 3: Cross multiply
   105,030.17x = 144,967.83 × 62,580.50
4. Step 4: Simplify right side
   105,030.17x = 9,072,159,285.32
5. Step 5: Solve for x
   x = 9,072,159,285.32/105,030.17
6. Step 6: Final answer
   x = 86,376.70