Finding the Fourth Proportional to 76,471.83, 105,548.01 and 42,492

Step by Step Solution

1. Step 1: Write the proportion equation
   76,471.83 : 105,548.01 = 42,492 : x
2. Step 2: Convert to fraction form
   76,471.83/105,548.01 = 42,492/x
3. Step 3: Cross multiply
   76,471.83x = 105,548.01 × 42,492
4. Step 4: Simplify right side
   76,471.83x = 4,484,945,828.46
5. Step 5: Solve for x
   x = 4,484,945,828.46/76,471.83
6. Step 6: Final answer
   x = 58,648.34