Finding the Fourth Proportional to 76,131.53, 105,058.88 and 42,141.50

Step by Step Solution

1. Step 1: Write the proportion equation
   76,131.53 : 105,058.88 = 42,141.50 : x
2. Step 2: Convert to fraction form
   76,131.53/105,058.88 = 42,141.50/x
3. Step 3: Cross multiply
   76,131.53x = 105,058.88 × 42,141.50
4. Step 4: Simplify right side
   76,131.53x = 4,427,339,054.17
5. Step 5: Solve for x
   x = 4,427,339,054.17/76,131.53
6. Step 6: Final answer
   x = 58,153.81