Finding the Fourth Proportional to 76,356.34, 105,368.18 and 42,364.47

Step by Step Solution

1. Step 1: Write the proportion equation
   76,356.34 : 105,368.18 = 42,364.47 : x
2. Step 2: Convert to fraction form
   76,356.34/105,368.18 = 42,364.47/x
3. Step 3: Cross multiply
   76,356.34x = 105,368.18 × 42,364.47
4. Step 4: Simplify right side
   76,356.34x = 4,463,867,100.56
5. Step 5: Solve for x
   x = 4,463,867,100.56/76,356.34
6. Step 6: Final answer
   x = 58,460.99