Finding the Fourth Proportional to 78,912, 108,899.52 and 43,584

Step by Step Solution

1. Step 1: Write the proportion equation
   78,912 : 108,899.52 = 43,584 : x
2. Step 2: Convert to fraction form
   78,912/108,899.52 = 43,584/x
3. Step 3: Cross multiply
   78,912x = 108,899.52 × 43,584
4. Step 4: Simplify right side
   78,912x = 4,746,276,679.68
5. Step 5: Solve for x
   x = 4,746,276,679.68/78,912
6. Step 6: Final answer
   x = 60,146.45