Finding the Fourth Proportional to 109,543.02, 151,168.82 and 61,142.18

Step by Step Solution

1. Step 1: Write the proportion equation
   109,543.02 : 151,168.82 = 61,142.18 : x
2. Step 2: Convert to fraction form
   109,543.02/151,168.82 = 61,142.18/x
3. Step 3: Cross multiply
   109,543.02x = 151,168.82 × 61,142.18
4. Step 4: Simplify right side
   109,543.02x = 9,242,791,674.70
5. Step 5: Solve for x
   x = 9,242,791,674.70/109,543.02
6. Step 6: Final answer
   x = 84,375.90