Finding the Fourth Proportional to 105,186.16, 157,543.89 and 48,942

Step by Step Solution

1. Step 1: Write the proportion equation
   105,186.16 : 157,543.89 = 48,942 : x
2. Step 2: Convert to fraction form
   105,186.16/157,543.89 = 48,942/x
3. Step 3: Cross multiply
   105,186.16x = 157,543.89 × 48,942
4. Step 4: Simplify right side
   105,186.16x = 7,710,513,064.38
5. Step 5: Solve for x
   x = 7,710,513,064.38/105,186.16
6. Step 6: Final answer
   x = 73,303.49