Finding the Fourth Proportional to 208,002.18, 311,979.18 and 58,254.42

Step by Step Solution

1. Step 1: Write the proportion equation
   208,002.18 : 311,979.18 = 58,254.42 : x
2. Step 2: Convert to fraction form
   208,002.18/311,979.18 = 58,254.42/x
3. Step 3: Cross multiply
   208,002.18x = 311,979.18 × 58,254.42
4. Step 4: Simplify right side
   208,002.18x = 18,174,166,182.98
5. Step 5: Solve for x
   x = 18,174,166,182.98/208,002.18
6. Step 6: Final answer
   x = 87,374.88