Finding the Fourth Proportional to 141,320.52, 211,519.35 and 103,870.71

Step by Step Solution

1. Step 1: Write the proportion equation
   141,320.52 : 211,519.35 = 103,870.71 : x
2. Step 2: Convert to fraction form
   141,320.52/211,519.35 = 103,870.71/x
3. Step 3: Cross multiply
   141,320.52x = 211,519.35 × 103,870.71
4. Step 4: Simplify right side
   141,320.52x = 21,970,665,063.24
5. Step 5: Solve for x
   x = 21,970,665,063.24/141,320.52
6. Step 6: Final answer
   x = 155,466.91