Finding the Fourth Proportional to 76,106, 105,026.28 and 42,572

Step by Step Solution

1. Step 1: Write the proportion equation
   76,106 : 105,026.28 = 42,572 : x
2. Step 2: Convert to fraction form
   76,106/105,026.28 = 42,572/x
3. Step 3: Cross multiply
   76,106x = 105,026.28 × 42,572
4. Step 4: Simplify right side
   76,106x = 4,471,178,792.16
5. Step 5: Solve for x
   x = 4,471,178,792.16/76,106
6. Step 6: Final answer
   x = 58,749.36