Finding the Fourth Proportional to 42,478, 58,619.71 and 23,615.13

Step by Step Solution

1. Step 1: Write the proportion equation
   42,478 : 58,619.71 = 23,615.13 : x
2. Step 2: Convert to fraction form
   42,478/58,619.71 = 23,615.13/x
3. Step 3: Cross multiply
   42,478x = 58,619.71 × 23,615.13
4. Step 4: Simplify right side
   42,478x = 1,384,311,779.11
5. Step 5: Solve for x
   x = 1,384,311,779.11/42,478
6. Step 6: Final answer
   x = 32,588.91