Finding the Fourth Proportional to 78,798.16, 108,741.71 and 42,988.92

Step by Step Solution

1. Step 1: Write the proportion equation
   78,798.16 : 108,741.71 = 42,988.92 : x
2. Step 2: Convert to fraction form
   78,798.16/108,741.71 = 42,988.92/x
3. Step 3: Cross multiply
   78,798.16x = 108,741.71 × 42,988.92
4. Step 4: Simplify right side
   78,798.16x = 4,674,688,779.33
5. Step 5: Solve for x
   x = 4,674,688,779.33/78,798.16
6. Step 6: Final answer
   x = 59,324.85