Finding the Fourth Proportional to 76,495.32, 105,560.82 and 42,503.40

Step by Step Solution

1. Step 1: Write the proportion equation
   76,495.32 : 105,560.82 = 42,503.40 : x
2. Step 2: Convert to fraction form
   76,495.32/105,560.82 = 42,503.40/x
3. Step 3: Cross multiply
   76,495.32x = 105,560.82 × 42,503.40
4. Step 4: Simplify right side
   76,495.32x = 4,486,693,756.79
5. Step 5: Solve for x
   x = 4,486,693,756.79/76,495.32
6. Step 6: Final answer
   x = 58,653.18