Finding the Fourth Proportional to 71,199.51, 98,238.96 and 42,513.57

Step by Step Solution

1. Step 1: Write the proportion equation
   71,199.51 : 98,238.96 = 42,513.57 : x
2. Step 2: Convert to fraction form
   71,199.51/98,238.96 = 42,513.57/x
3. Step 3: Cross multiply
   71,199.51x = 98,238.96 × 42,513.57
4. Step 4: Simplify right side
   71,199.51x = 4,176,488,902.69
5. Step 5: Solve for x
   x = 4,176,488,902.69/71,199.51
6. Step 6: Final answer
   x = 58,658.96