Finding the Fourth Proportional to 142,702.17, 214,055.37 and 67,830.03

Step by Step Solution

1. Step 1: Write the proportion equation
   142,702.17 : 214,055.37 = 67,830.03 : x
2. Step 2: Convert to fraction form
   142,702.17/214,055.37 = 67,830.03/x
3. Step 3: Cross multiply
   142,702.17x = 214,055.37 × 67,830.03
4. Step 4: Simplify right side
   142,702.17x = 14,519,382,168.76
5. Step 5: Solve for x
   x = 14,519,382,168.76/142,702.17
6. Step 6: Final answer
   x = 101,746.05