Finding the Fourth Proportional to 76,132.81, 105,061.83 and 42,141.33

Step by Step Solution

1. Step 1: Write the proportion equation
   76,132.81 : 105,061.83 = 42,141.33 : x
2. Step 2: Convert to fraction form
   76,132.81/105,061.83 = 42,141.33/x
3. Step 3: Cross multiply
   76,132.81x = 105,061.83 × 42,141.33
4. Step 4: Simplify right side
   76,132.81x = 4,427,445,090.40
5. Step 5: Solve for x
   x = 4,427,445,090.40/76,132.81
6. Step 6: Final answer
   x = 58,154.23