Finding the Fourth Proportional to 103,411.09, 142,703.53 and 63,192.16

Step by Step Solution

1. Step 1: Write the proportion equation
   103,411.09 : 142,703.53 = 63,192.16 : x
2. Step 2: Convert to fraction form
   103,411.09/142,703.53 = 63,192.16/x
3. Step 3: Cross multiply
   103,411.09x = 142,703.53 × 63,192.16
4. Step 4: Simplify right side
   103,411.09x = 9,017,744,300.32
5. Step 5: Solve for x
   x = 9,017,744,300.32/103,411.09
6. Step 6: Final answer
   x = 87,202.87