Finding the Fourth Proportional to 76,260.16, 105,238.72 and 42,726.08

Step by Step Solution

1. Step 1: Write the proportion equation
   76,260.16 : 105,238.72 = 42,726.08 : x
2. Step 2: Convert to fraction form
   76,260.16/105,238.72 = 42,726.08/x
3. Step 3: Cross multiply
   76,260.16x = 105,238.72 × 42,726.08
4. Step 4: Simplify right side
   76,260.16x = 4,496,437,969.82
5. Step 5: Solve for x
   x = 4,496,437,969.82/76,260.16
6. Step 6: Final answer
   x = 58,961.82