Finding the Fourth Proportional to 42,051.78, 58,031.10 and 23,188.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,051.78 : 58,031.10 = 23,188.50 : x
2. Step 2: Convert to fraction form
   42,051.78/58,031.10 = 23,188.50/x
3. Step 3: Cross multiply
   42,051.78x = 58,031.10 × 23,188.50
4. Step 4: Simplify right side
   42,051.78x = 1,345,654,162.35
5. Step 5: Solve for x
   x = 1,345,654,162.35/42,051.78
6. Step 6: Final answer
   x = 31,999.93