Finding the Fourth Proportional to 142,248.72, 213,393.72 and 58,014.02

Step by Step Solution

1. Step 1: Write the proportion equation
   142,248.72 : 213,393.72 = 58,014.02 : x
2. Step 2: Convert to fraction form
   142,248.72/213,393.72 = 58,014.02/x
3. Step 3: Cross multiply
   142,248.72x = 213,393.72 × 58,014.02
4. Step 4: Simplify right side
   142,248.72x = 12,379,827,539.95
5. Step 5: Solve for x
   x = 12,379,827,539.95/142,248.72
6. Step 6: Final answer
   x = 87,029.45