Finding the Fourth Proportional to 78,475.08, 108,296.52 and 42,664.32

Step by Step Solution

1. Step 1: Write the proportion equation
   78,475.08 : 108,296.52 = 42,664.32 : x
2. Step 2: Convert to fraction form
   78,475.08/108,296.52 = 42,664.32/x
3. Step 3: Cross multiply
   78,475.08x = 108,296.52 × 42,664.32
4. Step 4: Simplify right side
   78,475.08x = 4,620,397,384.17
5. Step 5: Solve for x
   x = 4,620,397,384.17/78,475.08
6. Step 6: Final answer
   x = 58,877.26