Finding the Fourth Proportional to 42,539.40, 58,688.58 and 42,473.79

Step by Step Solution

1. Step 1: Write the proportion equation
   42,539.40 : 58,688.58 = 42,473.79 : x
2. Step 2: Convert to fraction form
   42,539.40/58,688.58 = 42,473.79/x
3. Step 3: Cross multiply
   42,539.40x = 58,688.58 × 42,473.79
4. Step 4: Simplify right side
   42,539.40x = 2,492,726,422.32
5. Step 5: Solve for x
   x = 2,492,726,422.32/42,539.40
6. Step 6: Final answer
   x = 58,598.06