Finding the Fourth Proportional to 78,931.17, 108,924.62 and 43,123.23

Step by Step Solution

1. Step 1: Write the proportion equation
   78,931.17 : 108,924.62 = 43,123.23 : x
2. Step 2: Convert to fraction form
   78,931.17/108,924.62 = 43,123.23/x
3. Step 3: Cross multiply
   78,931.17x = 108,924.62 × 43,123.23
4. Step 4: Simplify right side
   78,931.17x = 4,697,181,225.31
5. Step 5: Solve for x
   x = 4,697,181,225.31/78,931.17
6. Step 6: Final answer
   x = 59,509.84