Finding the Fourth Proportional to 58,339.55, 87,487.86 and 20,889.47

Step by Step Solution

1. Step 1: Write the proportion equation
   58,339.55 : 87,487.86 = 20,889.47 : x
2. Step 2: Convert to fraction form
   58,339.55/87,487.86 = 20,889.47/x
3. Step 3: Cross multiply
   58,339.55x = 87,487.86 × 20,889.47
4. Step 4: Simplify right side
   58,339.55x = 1,827,575,026.83
5. Step 5: Solve for x
   x = 1,827,575,026.83/58,339.55
6. Step 6: Final answer
   x = 31,326.52