Finding the Fourth Proportional to 42,308.19, 58,385.88 and 23,187.65

Step by Step Solution

1. Step 1: Write the proportion equation
   42,308.19 : 58,385.88 = 23,187.65 : x
2. Step 2: Convert to fraction form
   42,308.19/58,385.88 = 23,187.65/x
3. Step 3: Cross multiply
   42,308.19x = 58,385.88 × 23,187.65
4. Step 4: Simplify right side
   42,308.19x = 1,353,831,058.45
5. Step 5: Solve for x
   x = 1,353,831,058.45/42,308.19
6. Step 6: Final answer
   x = 31,999.27