Finding the Fourth Proportional to 58,739.78, 88,123.34 and 19,294.50

Step by Step Solution

1. Step 1: Write the proportion equation
   58,739.78 : 88,123.34 = 19,294.50 : x
2. Step 2: Convert to fraction form
   58,739.78/88,123.34 = 19,294.50/x
3. Step 3: Cross multiply
   58,739.78x = 88,123.34 × 19,294.50
4. Step 4: Simplify right side
   58,739.78x = 1,700,296,162.33
5. Step 5: Solve for x
   x = 1,700,296,162.33/58,739.78
6. Step 6: Final answer
   x = 28,946.25