Finding the Fourth Proportional to 143,494.58, 215,196.15 and 52,298.62

Step by Step Solution

1. Step 1: Write the proportion equation
   143,494.58 : 215,196.15 = 52,298.62 : x
2. Step 2: Convert to fraction form
   143,494.58/215,196.15 = 52,298.62/x
3. Step 3: Cross multiply
   143,494.58x = 215,196.15 × 52,298.62
4. Step 4: Simplify right side
   143,494.58x = 11,254,461,674.31
5. Step 5: Solve for x
   x = 11,254,461,674.31/143,494.58
6. Step 6: Final answer
   x = 78,431.27