Finding the Fourth Proportional to 42,345.10, 58,409.40 and 27,211.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,345.10 : 58,409.40 = 27,211.72 : x
2. Step 2: Convert to fraction form
   42,345.10/58,409.40 = 27,211.72/x
3. Step 3: Cross multiply
   42,345.10x = 58,409.40 × 27,211.72
4. Step 4: Simplify right side
   42,345.10x = 1,589,420,238.17
5. Step 5: Solve for x
   x = 1,589,420,238.17/42,345.10
6. Step 6: Final answer
   x = 37,534.93