Finding the Fourth Proportional to 76,864.79, 106,073.54 and 42,875.46

Step by Step Solution

1. Step 1: Write the proportion equation
   76,864.79 : 106,073.54 = 42,875.46 : x
2. Step 2: Convert to fraction form
   76,864.79/106,073.54 = 42,875.46/x
3. Step 3: Cross multiply
   76,864.79x = 106,073.54 × 42,875.46
4. Step 4: Simplify right side
   76,864.79x = 4,547,951,606.95
5. Step 5: Solve for x
   x = 4,547,951,606.95/76,864.79
6. Step 6: Final answer
   x = 59,168.21