Finding the Fourth Proportional to 78,343.60, 108,114.24 and 42,533.60

Step by Step Solution

1. Step 1: Write the proportion equation
   78,343.60 : 108,114.24 = 42,533.60 : x
2. Step 2: Convert to fraction form
   78,343.60/108,114.24 = 42,533.60/x
3. Step 3: Cross multiply
   78,343.60x = 108,114.24 × 42,533.60
4. Step 4: Simplify right side
   78,343.60x = 4,598,487,838.46
5. Step 5: Solve for x
   x = 4,598,487,838.46/78,343.60
6. Step 6: Final answer
   x = 58,696.41