Finding the Fourth Proportional to 142,475.77, 213,702.56 and 58,213.49

Step by Step Solution

1. Step 1: Write the proportion equation
   142,475.77 : 213,702.56 = 58,213.49 : x
2. Step 2: Convert to fraction form
   142,475.77/213,702.56 = 58,213.49/x
3. Step 3: Cross multiply
   142,475.77x = 213,702.56 × 58,213.49
4. Step 4: Simplify right side
   142,475.77x = 12,440,371,548.47
5. Step 5: Solve for x
   x = 12,440,371,548.47/142,475.77
6. Step 6: Final answer
   x = 87,315.70