Finding the Fourth Proportional to 76,533.12, 105,607.71 and 42,536.16

Step by Step Solution

1. Step 1: Write the proportion equation
   76,533.12 : 105,607.71 = 42,536.16 : x
2. Step 2: Convert to fraction form
   76,533.12/105,607.71 = 42,536.16/x
3. Step 3: Cross multiply
   76,533.12x = 105,607.71 × 42,536.16
4. Step 4: Simplify right side
   76,533.12x = 4,492,146,449.79
5. Step 5: Solve for x
   x = 4,492,146,449.79/76,533.12
6. Step 6: Final answer
   x = 58,695.46